<?xml version="1.0" encoding="UTF-8"?>
<!--XBRL Document Modified with Ez-Editor Version 1.0.2.3 by DataTracks on Tuesday, January 22, 2013 06:43:46 PM -->
<!--XBRL Document Modified with Ez-Viewer Version 1.0.5.8 on Tuesday, January 22, 2013 06:45:49 PM -->
<!--XBRL Document Modified with Ez-Viewer Version 1.0.5.8 on Tuesday, January 22, 2013 06:48:39 PM -->
<!--XBRL Document Modified with Ez-Viewer Version 1.0.5.8 on Tuesday, January 22, 2013 07:06:24 PM -->
<!--XBRL Document Modified with Ez-Viewer Version 1.0.5.8 on Tuesday, January 22, 2013 07:17:37 PM -->
<!--XBRL Document Modified with Ez-Viewer Version 1.0.5.8 on Tuesday, January 22, 2013 07:22:40 PM -->
<!--XBRL Document Modified with Ez-Viewer Version 1.0.5.8 on Tuesday, January 22, 2013 11:54:21 PM -->
<!--XBRL Document Modified with Ez-Viewer Version 1.0.5.8 on Wednesday, January 23, 2013 12:13:38 AM -->
<!--XBRL Document Modified with Ez-Viewer Version 1.0.5.8 on Wednesday, January 23, 2013 12:42:42 AM -->
<!--XBRL Document Modified with Ez-Viewer Version 1.0.5.8 on Wednesday, January 23, 2013 02:47:27 AM -->
<!--XBRL Document Modified with Ez-Viewer Version 1.0.5.8 on Wednesday, January 23, 2013 02:53:44 AM -->
<!--XBRL Document Modified with Ez-Viewer Version 1.0.5.8 on Wednesday, January 23, 2013 03:03:33 AM -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
<roleRef xlink:type="simple" xlink:href="nxoi-20121130.xsd#StatementOfFinancialPositionClassified" roleURI="http://www.nxoi.com/role/StatementOfFinancialPositionClassified"/>
<calculationLink xlink:type="extended" xlink:role="http://www.nxoi.com/role/StatementOfFinancialPositionClassified">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue" order="10" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent" order="20" use="optional" weight="1"/>


<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" order="40" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SecurityDeposit" xlink:label="loc_us-gaap_SecurityDeposit"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent" xlink:to="loc_us-gaap_SecurityDeposit" order="50" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets" xlink:to="loc_us-gaap_AssetsCurrent" order="10" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill" order="30" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities" xlink:to="loc_us-gaap_LiabilitiesCurrent" order="10" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ConvertibleLongTermNotesPayable" xlink:label="loc_us-gaap_ConvertibleLongTermNotesPayable"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities" xlink:to="loc_us-gaap_ConvertibleLongTermNotesPayable" order="20" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermNotesPayable" xlink:label="loc_us-gaap_LongTermNotesPayable"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities" xlink:to="loc_us-gaap_LongTermNotesPayable" order="30" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit" order="10" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="loc_us-gaap_Liabilities" order="10" use="optional" weight="1"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="loc_us-gaap_StockholdersEquity" order="20" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_StockholdersEquityExcludingAccumulatedDeficitAndTreasuryStock" xlink:label="loc_nxoi_StockholdersEquityExcludingAccumulatedDeficitAndTreasuryStock"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity" xlink:to="loc_nxoi_StockholdersEquityExcludingAccumulatedDeficitAndTreasuryStock" order="11" use="optional" weight="1"/>


<loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_OptionAgreementNoncurrent" xlink:label="loc_nxoi_OptionAgreementNoncurrent"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets" xlink:to="loc_nxoi_OptionAgreementNoncurrent" order="40" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" order="30" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_MinorityInterest" xlink:label="loc_us-gaap_MinorityInterest"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="loc_us-gaap_MinorityInterest" order="0" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_1"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="loc_us-gaap_StockholdersEquity_1" order="1" use="optional" weight="1"/>
</calculationLink>




<roleRef xlink:type="simple" xlink:href="nxoi-20121130.xsd#StatementOfIncome" roleURI="http://www.nxoi.com/role/StatementOfIncome"/>
<calculationLink xlink:type="extended" xlink:role="http://www.nxoi.com/role/StatementOfIncome">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SalesRevenueNet" xlink:label="loc_us-gaap_SalesRevenueNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SalesRevenueServicesNet" xlink:label="loc_us-gaap_SalesRevenueServicesNet"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SalesRevenueNet" xlink:to="loc_us-gaap_SalesRevenueServicesNet" order="10" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AdvertisingRevenue" xlink:label="loc_us-gaap_AdvertisingRevenue"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SalesRevenueNet" xlink:to="loc_us-gaap_AdvertisingRevenue" order="20" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit" xlink:to="loc_us-gaap_SalesRevenueNet" order="10" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CostOfServices" xlink:label="loc_us-gaap_CostOfServices"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit" xlink:to="loc_us-gaap_CostOfServices" order="20" use="optional" weight="-1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaap_OperatingExpenses"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SalariesWagesAndOfficersCompensation" xlink:label="loc_us-gaap_SalariesWagesAndOfficersCompensation"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses" xlink:to="loc_us-gaap_SalariesWagesAndOfficersCompensation" order="10" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SellingAndMarketingExpense" xlink:label="loc_us-gaap_SellingAndMarketingExpense"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses" xlink:to="loc_us-gaap_SellingAndMarketingExpense" order="20" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense" order="30" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss" xlink:to="loc_us-gaap_GrossProfit" order="10" use="optional" weight="1"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss" xlink:to="loc_us-gaap_OperatingExpenses" order="20" use="optional" weight="-1"/><loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_TotalOtherIncomeExpense" xlink:label="loc_nxoi_TotalOtherIncomeExpense"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_nxoi_TotalOtherIncomeExpense" xlink:to="loc_us-gaap_InterestExpense" order="10" use="optional" weight="-1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_nxoi_TotalOtherIncomeExpense" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt" order="20" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_GainLossRelatedToLitigationSettlement" xlink:label="loc_us-gaap_GainLossRelatedToLitigationSettlement"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_nxoi_TotalOtherIncomeExpense" xlink:to="loc_us-gaap_GainLossRelatedToLitigationSettlement" order="30" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments" xlink:label="loc_us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_nxoi_TotalOtherIncomeExpense" xlink:to="loc_us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments" order="40" use="optional" weight="-1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherNonoperatingExpense" xlink:label="loc_us-gaap_OtherNonoperatingExpense"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_nxoi_TotalOtherIncomeExpense" xlink:to="loc_us-gaap_OtherNonoperatingExpense" order="50" use="optional" weight="-1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss" xlink:to="loc_us-gaap_OperatingIncomeLoss" order="10" use="optional" weight="1"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss" xlink:to="loc_nxoi_TotalOtherIncomeExpense" order="20" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss" xlink:to="loc_us-gaap_ProfitLoss" order="30" use="optional" weight="1"/>
</calculationLink>





<roleRef xlink:type="simple" xlink:href="nxoi-20121130.xsd#StatementOfCashFlowsIndirect" roleURI="http://www.nxoi.com/role/StatementOfCashFlowsIndirect"/>
<calculationLink xlink:type="extended" xlink:role="http://www.nxoi.com/role/StatementOfCashFlowsIndirect">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_NetIncomeLoss" order="10" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_InterestExpenseDebt" xlink:label="loc_us-gaap_InterestExpenseDebt"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_InterestExpenseDebt" order="20" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims" xlink:label="loc_us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims" order="30" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt" order="40" use="optional" weight="-1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_GainLossRelatedToLitigationSettlement" xlink:label="loc_us-gaap_GainLossRelatedToLitigationSettlement"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_GainLossRelatedToLitigationSettlement" order="50" use="optional" weight="-1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets" order="60" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AmortizationOfDebtDiscountPremium" xlink:label="loc_us-gaap_AmortizationOfDebtDiscountPremium"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_AmortizationOfDebtDiscountPremium" order="70" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts" order="80" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_ShareBasedCompensation" order="90" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_ConversionPenalties" xlink:label="loc_nxoi_ConversionPenalties"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_nxoi_ConversionPenalties" order="100" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_FeesAssessedForDebtAssignment" xlink:label="loc_nxoi_FeesAssessedForDebtAssignment"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_nxoi_FeesAssessedForDebtAssignment" order="110" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments" xlink:label="loc_us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments" order="120" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable" order="130" use="optional" weight="-1"/>


<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" order="150" use="optional" weight="-1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInSecurityDeposits" xlink:label="loc_us-gaap_IncreaseDecreaseInSecurityDeposits"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_IncreaseDecreaseInSecurityDeposits" order="160" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" order="170" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInOtherCurrentLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities" order="180" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" order="10" use="optional" weight="-1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromConvertibleDebt" xlink:label="loc_us-gaap_ProceedsFromConvertibleDebt"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaap_ProceedsFromConvertibleDebt" order="10" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RepaymentsOfConvertibleDebt" xlink:label="loc_us-gaap_RepaymentsOfConvertibleDebt"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaap_RepaymentsOfConvertibleDebt" order="20" use="optional" weight="-1"/><loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_ProceedsFromOtherAdvances" xlink:label="loc_nxoi_ProceedsFromOtherAdvances"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="loc_nxoi_ProceedsFromOtherAdvances" order="30" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_ProceedsFromOtherNotesPayable" xlink:label="loc_nxoi_ProceedsFromOtherNotesPayable"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="loc_nxoi_ProceedsFromOtherNotesPayable" order="50" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_PrincipalPaymentsOfOtherNotesPayable" xlink:label="loc_nxoi_PrincipalPaymentsOfOtherNotesPayable"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="loc_nxoi_PrincipalPaymentsOfOtherNotesPayable" order="60" use="optional" weight="-1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromRelatedPartyDebt" xlink:label="loc_us-gaap_ProceedsFromRelatedPartyDebt"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaap_ProceedsFromRelatedPartyDebt" order="70" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_PaymentOnShareholderLoans" xlink:label="loc_nxoi_PaymentOnShareholderLoans"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="loc_nxoi_PaymentOnShareholderLoans" order="80" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromNotesPayable" xlink:label="loc_us-gaap_ProceedsFromNotesPayable"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaap_ProceedsFromNotesPayable" order="90" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RepaymentsOfNotesPayable" xlink:label="loc_us-gaap_RepaymentsOfNotesPayable"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaap_RepaymentsOfNotesPayable" order="100" use="optional" weight="-1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsToAcquireEquipmentOnLease" xlink:label="loc_us-gaap_PaymentsToAcquireEquipmentOnLease"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaap_PaymentsToAcquireEquipmentOnLease" order="110" use="optional" weight="-1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock" order="120" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_ProceedsFromCollectionOfStockSubscriptionReceivable" xlink:label="loc_nxoi_ProceedsFromCollectionOfStockSubscriptionReceivable"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="loc_nxoi_ProceedsFromCollectionOfStockSubscriptionReceivable" order="130" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="loc_us-gaap_ProceedsFromIssuanceOrSaleOfEquity"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" order="140" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" order="10" use="optional" weight="1"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities" order="20" use="optional" weight="1"/><calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" order="30" use="optional" weight="1"/><loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" order="190" use="optional" weight="1"/>
</calculationLink>



<roleRef xlink:type="simple" xlink:href="nxoi-20121130.xsd#AccountsPayableAndAccruedExpensesDetails" roleURI="http://www.nxoi.com/role/AccountsPayableAndAccruedExpensesDetails"/>
<calculationLink xlink:type="extended" xlink:role="http://www.nxoi.com/role/AccountsPayableAndAccruedExpensesDetails">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccountsPayableTradeCurrent" xlink:label="loc_us-gaap_AccountsPayableTradeCurrent"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:to="loc_us-gaap_AccountsPayableTradeCurrent" order="10" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaap_InterestPayableCurrent"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:to="loc_us-gaap_InterestPayableCurrent" order="20" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DeferredCompensationLiabilityCurrent" xlink:label="loc_us-gaap_DeferredCompensationLiabilityCurrent"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:to="loc_us-gaap_DeferredCompensationLiabilityCurrent" order="30" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent" order="40" use="optional" weight="1"/>
</calculationLink>
<roleRef xlink:type="simple" xlink:href="nxoi-20121130.xsd#NotesPayableDetails" roleURI="http://www.nxoi.com/role/NotesPayableDetails"/>
<calculationLink xlink:type="extended" xlink:role="http://www.nxoi.com/role/NotesPayableDetails">
<loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_DebtMaturitiesGross" xlink:label="loc_nxoi_DebtMaturitiesGross"/>
<loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_DebtMaturitiesDueWithInOneYear" xlink:label="loc_nxoi_DebtMaturitiesDueWithInOneYear"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_nxoi_DebtMaturitiesGross" xlink:to="loc_nxoi_DebtMaturitiesDueWithInOneYear" order="10" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_DebtMaturitiesDueWithInSecondYear" xlink:label="loc_nxoi_DebtMaturitiesDueWithInSecondYear"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_nxoi_DebtMaturitiesGross" xlink:to="loc_nxoi_DebtMaturitiesDueWithInSecondYear" order="20" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_DebtMaturitiesDueAfterThirdYear" xlink:label="loc_nxoi_DebtMaturitiesDueAfterThirdYear"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_nxoi_DebtMaturitiesGross" xlink:to="loc_nxoi_DebtMaturitiesDueAfterThirdYear" order="30" use="optional" weight="1"/>
</calculationLink>
<roleRef xlink:type="simple" xlink:href="nxoi-20121130.xsd#CommitmentsAndContingenciesDetails" roleURI="http://www.nxoi.com/role/CommitmentsAndContingenciesDetails"/>
<calculationLink xlink:type="extended" xlink:role="http://www.nxoi.com/role/CommitmentsAndContingenciesDetails">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ContractualObligation" xlink:label="loc_us-gaap_ContractualObligation"/>
<loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_CarriageFees" xlink:label="loc_nxoi_CarriageFees"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ContractualObligation" xlink:to="loc_nxoi_CarriageFees" order="10" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_ConsultingFees" xlink:label="loc_nxoi_ConsultingFees"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ContractualObligation" xlink:to="loc_nxoi_ConsultingFees" order="20" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherCommitment" xlink:label="loc_us-gaap_OtherCommitment"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ContractualObligation" xlink:to="loc_us-gaap_OtherCommitment" order="30" use="optional" weight="1"/>
<loc xlink:type="locator" xlink:href="nxoi-20121130.xsd#nxoi_LeaseObligation" xlink:label="loc_nxoi_LeaseObligation"/>
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ContractualObligation" xlink:to="loc_nxoi_LeaseObligation" order="40" use="optional" weight="1"/>
</calculationLink>


</linkbase>
