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  <xs:element id="go_EffectiveIncomeTaxRateReconciliationSection162mCompensationLimitationOnCoveredEmployees" abstract="false" name="EffectiveIncomeTaxRateReconciliationSection162mCompensationLimitationOnCoveredEmployees" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="go_OneMonthInterestPeriodAdjustedTermSOFRMember" abstract="true" name="OneMonthInterestPeriodAdjustedTermSOFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="go_FinancingAndTradeReceivablesDisclosureTextBlock" abstract="false" name="FinancingAndTradeReceivablesDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="go_NonTCAPMember" abstract="true" name="NonTCAPMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="go_IndependentOperatorNotesStatedInterestRate" abstract="false" name="IndependentOperatorNotesStatedInterestRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="go_GainLossOnExtinguishmentAndModificationOfDebt" abstract="false" name="GainLossOnExtinguishmentAndModificationOfDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_DebtInstrumentLeverageRatio" abstract="false" name="DebtInstrumentLeverageRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="go_SeniorTermLoanDue2028Member" abstract="true" name="SeniorTermLoanDue2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="go_LeaseLiabilityNoncurrentAbstract" abstract="true" name="LeaseLiabilityNoncurrentAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="go_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalSharesAuthorizedPercentOfCommonStockOutstanding" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalSharesAuthorizedPercentOfCommonStockOutstanding" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="go_NonPerishableMember" abstract="true" name="NonPerishableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="go_LeaseWeightedAverageDiscountRatePercentAbstract" abstract="true" name="LeaseWeightedAverageDiscountRatePercentAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="go_RelatedPartiesMember" abstract="true" name="RelatedPartiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="go_LeaseLiabilityPaymentsDueYearFive" abstract="false" name="LeaseLiabilityPaymentsDueYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_DebtInstrumentInterestCoverageRatio" abstract="false" name="DebtInstrumentInterestCoverageRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="go_A2019IncentivePlanMember" abstract="true" name="A2019IncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="go_ContractWithCustomerLiabilityBreakage" abstract="false" name="ContractWithCustomerLiabilityBreakage" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_DeferredTaxLiabilitiesDebtTransactionCosts" abstract="false" name="DeferredTaxLiabilitiesDebtTransactionCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_FinancingReceivableTransferredToFromTCAP" abstract="false" name="FinancingReceivableTransferredToFromTCAP" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceTargetLevels" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceTargetLevels" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="go_PerishableMember" abstract="true" name="PerishableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="go_MultiemployerPlansSurcharges" abstract="false" name="MultiemployerPlansSurcharges" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_WriteOffOfUnamortizedDebtDiscountPremium" abstract="false" name="WriteOffOfUnamortizedDebtDiscountPremium" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_IndependentOperatorNotesWeightedAverageInterestRateAtPointInTime" abstract="false" name="IndependentOperatorNotesWeightedAverageInterestRateAtPointInTime" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="go_AccountsAndFinancingReceivableAfterAllowanceForCreditLoss1" abstract="false" name="AccountsAndFinancingReceivableAfterAllowanceForCreditLoss1" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_MultiemployerPlanPensionSignificantEmployerContributionPercent" abstract="false" name="MultiemployerPlanPensionSignificantEmployerContributionPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="go_FinanceLeaseCost1Abstract" abstract="true" name="FinanceLeaseCost1Abstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="go_LeaseAcquisitionCostsMember" abstract="true" name="LeaseAcquisitionCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="go_AmortizationOfIntangiblesAndOtherAssets" abstract="false" name="AmortizationOfIntangiblesAndOtherAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_DebtModificationCosts" abstract="false" name="DebtModificationCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_VariableInterestEntityNumberOfStores" abstract="false" name="VariableInterestEntityNumberOfStores" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="go_NumberOfWarehouses" abstract="false" name="NumberOfWarehouses" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="go_ShareBasedPaymentArrangementTimeBasedOptionMember" abstract="true" name="ShareBasedPaymentArrangementTimeBasedOptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="go_DeferredTaxAssetsLeasingArrangements" abstract="false" name="DeferredTaxAssetsLeasingArrangements" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantAutomaticIncrease" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantAutomaticIncrease" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="go_LeaseLiability" abstract="false" name="LeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_NoncashOperatingLeaseExpense" abstract="false" name="NoncashOperatingLeaseExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_LeaseLiabilityPaymentDueAbstract" abstract="true" name="LeaseLiabilityPaymentDueAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="go_DeferredTaxAssetsTransactionCosts" abstract="false" name="DeferredTaxAssetsTransactionCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_OneThreeOrSixMonthInterestPeriodAdjustedTermSOFRMember" abstract="true" name="OneThreeOrSixMonthInterestPeriodAdjustedTermSOFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="go_GiftCardRedemptionPeriod" abstract="false" name="GiftCardRedemptionPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="go_RestrictedStockUnitsRSUsAndPerformanceSharesUnitsPSUsMember" abstract="true" name="RestrictedStockUnitsRSUsAndPerformanceSharesUnitsPSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="go_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustment" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustment" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="go_PaymentsForAdvancesToIndependentOperators" abstract="false" name="PaymentsForAdvancesToIndependentOperators" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_LeaseWeightedAverageRemainingLeaseTermAbstract" abstract="true" name="LeaseWeightedAverageRemainingLeaseTermAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="go_LeaseLiabilityPaymentsDueYearOne" abstract="false" name="LeaseLiabilityPaymentsDueYearOne" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_LesseeOperatingLeaseLeaseNotYetCommencedLiabilityPaymentsDue" abstract="false" name="LesseeOperatingLeaseLeaseNotYetCommencedLiabilityPaymentsDue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_NumberOfDiscountGroceryStoresOperated" abstract="false" name="NumberOfDiscountGroceryStoresOperated" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="go_CreditAgreementMember" abstract="true" name="CreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="go_LeaseLiabilityCurrent" abstract="false" name="LeaseLiabilityCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_IndependentOperatorReceivablesMember" abstract="true" name="IndependentOperatorReceivablesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="go_LesseeOperatingLeaseLeaseNotYetCommencedNumberOfLeases" abstract="false" name="LesseeOperatingLeaseLeaseNotYetCommencedNumberOfLeases" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="go_AssetsLesseeAbstract" abstract="true" name="AssetsLesseeAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="go_FixturesAndEquipmentMember" abstract="true" name="FixturesAndEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
</xs:schema>
