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  <xs:element id="xndu_XanaduClassBSubordinateVotingSharesEarnOutSharesMember" abstract="true" name="XanaduClassBSubordinateVotingSharesEarnOutSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_YorkvilleInvestorMember" abstract="true" name="YorkvilleInvestorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_WorkingCapitalNet" abstract="false" name="WorkingCapitalNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_CashAcquiredThroughReverseRecapitalization" abstract="false" name="CashAcquiredThroughReverseRecapitalization" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_DerivativeLiabilityContingentConsiderationRemainingSharesAvailableForIssuance" abstract="false" name="DerivativeLiabilityContingentConsiderationRemainingSharesAvailableForIssuance" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="xndu_RevenueFromContractWithCustomerContractDuration" abstract="false" name="RevenueFromContractWithCustomerContractDuration" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="xndu_ComputerSystemsAndServersMember" abstract="true" name="ComputerSystemsAndServersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_ScheduleOfReverseRecapitalizationTable" abstract="true" name="ScheduleOfReverseRecapitalizationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationWarrantExchangeComponentAxis" abstract="true" name="ReverseRecapitalizationWarrantExchangeComponentAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationWarrantExchangeComponentDomain" abstract="true" name="ReverseRecapitalizationWarrantExchangeComponentDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_WarrantExchangeComponentOneMember" abstract="true" name="WarrantExchangeComponentOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_WarrantExchangeComponentTwoMember" abstract="true" name="WarrantExchangeComponentTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_XanaduClassAMultipleVotingSharesMember" abstract="true" name="XanaduClassAMultipleVotingSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationTermsOfEarnoutLiabilityAxis" abstract="true" name="ReverseRecapitalizationTermsOfEarnoutLiabilityAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationTermsOfEarnoutLiabilityDomain" abstract="true" name="ReverseRecapitalizationTermsOfEarnoutLiabilityDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationEarnoutLiabilityTermsOneMember" abstract="true" name="ReverseRecapitalizationEarnoutLiabilityTermsOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationEarnoutLiabilityTermsTwoMember" abstract="true" name="ReverseRecapitalizationEarnoutLiabilityTermsTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_PIPEInvestorsMember" abstract="true" name="PIPEInvestorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_ScheduleOfReverseRecapitalizationLineItems" abstract="true" name="ScheduleOfReverseRecapitalizationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationNumberOfShareClasses" abstract="false" name="ReverseRecapitalizationNumberOfShareClasses" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="xndu_RecapitalizationExchangeRatio" abstract="false" name="RecapitalizationExchangeRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationAcquisitionRelatedCostExpense" abstract="false" name="ReverseRecapitalizationAcquisitionRelatedCostExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationAcquisitionRelatedCostEquityInterestSharesIssuedExpense" abstract="false" name="ReverseRecapitalizationAcquisitionRelatedCostEquityInterestSharesIssuedExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationAcquisitionRelatedCostLiabilityEarnoutPeriodExpense" abstract="false" name="ReverseRecapitalizationAcquisitionRelatedCostLiabilityEarnoutPeriodExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationAcquisitionRelatedCostEquityInterestShareCapitalExpense" abstract="false" name="ReverseRecapitalizationAcquisitionRelatedCostEquityInterestShareCapitalExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationAcquisitionRelatedCostIndirectCost" abstract="false" name="ReverseRecapitalizationAcquisitionRelatedCostIndirectCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationAcquisitionRelatedCostIndirectCostExpenseIncurred" abstract="false" name="ReverseRecapitalizationAcquisitionRelatedCostIndirectCostExpenseIncurred" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_DerivativeInstrumentContingentConsiderationLiabilityVestedShares" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityVestedShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="xndu_DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodStockPriceTrigger" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodStockPriceTrigger" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="xndu_DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodThresholdTradingDays" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodThresholdTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="xndu_DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodThresholdConsecutiveTradingDays" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodThresholdConsecutiveTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="xndu_OldXanaduShareholdersMember" abstract="true" name="OldXanaduShareholdersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_OldXanaduOptionsMember" abstract="true" name="OldXanaduOptionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_OldXanaduWarrantsMember" abstract="true" name="OldXanaduWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_SPACPublicShareholdersMember" abstract="true" name="SPACPublicShareholdersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_SPACPrivatePlacementShareholdersMember" abstract="true" name="SPACPrivatePlacementShareholdersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_SPACSponsorSharesMember" abstract="true" name="SPACSponsorSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationLineItems" abstract="true" name="ReverseRecapitalizationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationVotingEquityInterestAcquiredPercentage" abstract="false" name="ReverseRecapitalizationVotingEquityInterestAcquiredPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="xndu_CommonStockSharesOutstandingDiluted" abstract="false" name="CommonStockSharesOutstandingDiluted" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="xndu_ReverseRecapitalizationVotingEquityInterestAcquiredDilutedPercentage" abstract="false" name="ReverseRecapitalizationVotingEquityInterestAcquiredDilutedPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="xndu_SalesTaxReceivableCurrent" abstract="false" name="SalesTaxReceivableCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_PrepaidProfessionalServicesExpensesCurrent" abstract="false" name="PrepaidProfessionalServicesExpensesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_MiscellaneousPrepaidExpenseAndOtherAssetsCurrent" abstract="false" name="MiscellaneousPrepaidExpenseAndOtherAssetsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_MiscellaneousAccruedExpensesAndOtherLiabilitiesCurrent" abstract="false" name="MiscellaneousAccruedExpensesAndOtherLiabilitiesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_EquipmentDepositsNoncurrent" abstract="false" name="EquipmentDepositsNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_SIFLoanMember" abstract="true" name="SIFLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_FedDevLoanMember" abstract="true" name="FedDevLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_LongTermDebtPrincipalAndInterestRepaymentsPercentageOfPrincipalAmount" abstract="false" name="LongTermDebtPrincipalAndInterestRepaymentsPercentageOfPrincipalAmount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="xndu_LongTermDebtRepaymentNumberOfAnnualInstallments" abstract="false" name="LongTermDebtRepaymentNumberOfAnnualInstallments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="xndu_LongTermDebtRepaymentNumberOfMonthlyInstallments" abstract="false" name="LongTermDebtRepaymentNumberOfMonthlyInstallments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="xndu_ReconciliationOfCarryingValueOfLoansRollForward" abstract="true" name="ReconciliationOfCarryingValueOfLoansRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="xndu_LongTermDebtIncreaseDecreaseInForeignExchangeRatesNetOfContributionsReceived" abstract="false" name="LongTermDebtIncreaseDecreaseInForeignExchangeRatesNetOfContributionsReceived" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_InterestExpenseNetOfForeignExchangeRatesDebt" abstract="false" name="InterestExpenseNetOfForeignExchangeRatesDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_MVSWarrantsMember" abstract="true" name="MVSWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_SVSWarrantsMember" abstract="true" name="SVSWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_WarrantLiabilityMember" abstract="true" name="WarrantLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_SFTrustWarrantsMember" abstract="true" name="SFTrustWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_RBCWarrantsMember" abstract="true" name="RBCWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_RBCTermLoanMember" abstract="true" name="RBCTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_ClassOfWarrantsOrRightsVotingEquityInterestAcquiredPercentage" abstract="false" name="ClassOfWarrantsOrRightsVotingEquityInterestAcquiredPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="xndu_ClassOfWarrantOrRightRedemptionTermLoanDrawTrigger" abstract="false" name="ClassOfWarrantOrRightRedemptionTermLoanDrawTrigger" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_ClassOfWarrantsAndRightsVestedInPeriod" abstract="false" name="ClassOfWarrantsAndRightsVestedInPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="xndu_ClassOfWarrantsAndRightsExpiredInPeriod" abstract="false" name="ClassOfWarrantsAndRightsExpiredInPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="xndu_ClassOfWarrantOrRightNumberOfWarrantsSurrenderedToCoverExercisePrice" abstract="false" name="ClassOfWarrantOrRightNumberOfWarrantsSurrenderedToCoverExercisePrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="xndu_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityReclassificationOfLiabilityToEquity" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityReclassificationOfLiabilityToEquity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_MeasurementInputSharesSubjectToFairValueMember" abstract="true" name="MeasurementInputSharesSubjectToFairValueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_MeasurementInputFairValueMember" abstract="true" name="MeasurementInputFairValueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_DerivativeInstrumentForfeitureHurdleSharePriceAchieved" abstract="false" name="DerivativeInstrumentForfeitureHurdleSharePriceAchieved" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="xndu_DerivativeInstrumentMaximumForfeitureHurdleSharePrice" abstract="false" name="DerivativeInstrumentMaximumForfeitureHurdleSharePrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="xndu_ProfessionalServicesMember" abstract="true" name="ProfessionalServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_ComputeAndOtherServicesMember" abstract="true" name="ComputeAndOtherServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_RestOfWorldMember" abstract="true" name="RestOfWorldMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_Customer1Member" abstract="true" name="Customer1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_Customer2Member" abstract="true" name="Customer2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_Customer3Member" abstract="true" name="Customer3Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_SATMFacilityMember" abstract="true" name="SATMFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_NumberOfClassesOfCommonShares" abstract="false" name="NumberOfClassesOfCommonShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="xndu_CommonStockNumberOfVotes" abstract="false" name="CommonStockNumberOfVotes" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="xndu_CommonStockConvertibleConversionRatio" abstract="false" name="CommonStockConvertibleConversionRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="xndu_SaleOfStockTerm" abstract="false" name="SaleOfStockTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="xndu_SaleOfStockMaximumAmountIssuable" abstract="false" name="SaleOfStockMaximumAmountIssuable" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_SharesValueIssued" abstract="false" name="SharesValueIssued" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_SharesValueOutstanding" abstract="false" name="SharesValueOutstanding" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_ConversionOfConvertiblePreferredStockMember" abstract="true" name="ConversionOfConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_ConversionOfEarnOutSharesMember" abstract="true" name="ConversionOfEarnOutSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_A2017EquityIncentivePlanMember" abstract="true" name="A2017EquityIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_A2018EquityIncentivePlanMember" abstract="true" name="A2018EquityIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_XanaduOmnibusLongTermIncentivePlanMember" abstract="true" name="XanaduOmnibusLongTermIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="xndu_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationPeriodFromEmployeeTermination" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationPeriodFromEmployeeTermination" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="xndu_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverageRemainingContractualTerm" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverageRemainingContractualTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="xndu_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedIntrinsicValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedIntrinsicValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnvestedNumber" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnvestedNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="xndu_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsUnvestedWeightedAverageGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsUnvestedWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="xndu_LesseeOperatingLeaseLiabilityToBePaidYearFourAndThereafter" abstract="false" name="LesseeOperatingLeaseLiabilityToBePaidYearFourAndThereafter" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="xndu_ReportableSegmentMember" abstract="true" name="ReportableSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
