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          <link:definition>999052 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Details - Changes in the fair values of the derivative)</link:definition>
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          <link:definition>999053 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Details - range of inputs by valuation technique)</link:definition>
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          <link:definition>999054 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Details - Changes in fair value inputs)</link:definition>
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          <link:definition>999055 - Disclosure - STOCK OPTIONS (Details - Stock options granted)</link:definition>
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    <element id="HLEO_StockIssuedDuringPeriodValueConversionOfConvertibleDebt" name="StockIssuedDuringPeriodValueConversionOfConvertibleDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_StockIssuedDuringPeriodSharesConversionOfConvertibleDebt" name="StockIssuedDuringPeriodSharesConversionOfConvertibleDebt" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_StockIssuedDuringPeriodValueCommonStockIssuedWithDebtAmendment" name="StockIssuedDuringPeriodValueCommonStockIssuedWithDebtAmendment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_StockIssuedDuringPeriodSharesCommonStockIssuedWithDebtAmendmentShares" name="StockIssuedDuringPeriodSharesCommonStockIssuedWithDebtAmendmentShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_IncreaseDecreaseInWorkInProgress" name="IncreaseDecreaseInWorkInProgress" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_RepaymentOfNotesPayableRelatedParties" name="RepaymentOfNotesPayableRelatedParties" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_ConversionOfNotesPayableAndAccruedInterest" name="ConversionOfNotesPayableAndAccruedInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_ConversionOfNotesPayableIntoSeriesDConvertiblePreferredStock" name="ConversionOfNotesPayableIntoSeriesDConvertiblePreferredStock" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_CommonStockIssuedWithNotesPayable" name="CommonStockIssuedWithNotesPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_TransferFromNotesPayableRelatedPartyToNotesPayable" name="TransferFromNotesPayableRelatedPartyToNotesPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_ToRecordDerivativeLiability" name="ToRecordDerivativeLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_ToRecordDebtDiscounts" name="ToRecordDebtDiscounts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_CashlessExerciseOfWarrantsValue" name="CashlessExerciseOfWarrantsValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_ExtinguishmentOfDebtByShareholder" name="ExtinguishmentOfDebtByShareholder" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_DisclosureNotesPayableRelatedPartiesAbstract" name="DisclosureNotesPayableRelatedPartiesAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_NotesPayableRelatedPartiesDisclosureTextBlock" name="NotesPayableRelatedPartiesDisclosureTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_DisclosureLeasesAbstract" name="DisclosureLeasesAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_WorkInProgressPolicyPolicyTextBlock" name="WorkInProgressPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_ScheduleOfDepreciationUtilizingEstimatedUsefulLivesTableTextBlock" name="ScheduleOfDepreciationUtilizingEstimatedUsefulLivesTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_ScheduleOfNotesPayableTableTextBlock" name="ScheduleOfNotesPayableTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_EmbeddedDerivativeLiability" name="EmbeddedDerivativeLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_DisclosureTable" name="DisclosureTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
    <element id="HLEO_DisclosureLineitem" name="DisclosureLineitem" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_SharesTransferredForConsideration" name="SharesTransferredForConsideration" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_CollateralSecuritiesPledged" name="CollateralSecuritiesPledged" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_CollateralCoverageRatio" name="CollateralCoverageRatio" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_PercentageOfEstimatedSalesRevenue" name="PercentageOfEstimatedSalesRevenue" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_IndexedSharesEmbeddedDerivatives" name="IndexedSharesEmbeddedDerivatives" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_IssuanceOfEmbeddedDerivatives" name="IssuanceOfEmbeddedDerivatives" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_ExtinguishmentsOfEmbeddedDerivatives" name="ExtinguishmentsOfEmbeddedDerivatives" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_ExtinguishmentsWarrantsDerivatives" name="ExtinguishmentsWarrantsDerivatives" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionGrantsInPeriodGrantDateIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionGrantsInPeriodGrantDateIntrinsicValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeitureInPeriodTotalIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeitureInPeriodTotalIntrinsicValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_OperatingLeaseRightOfUseAssetBeforeAccumulatedAmortization" name="OperatingLeaseRightOfUseAssetBeforeAccumulatedAmortization" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_OperatingLeaseRightOfUseAssetAccumulatedAmortizations" name="OperatingLeaseRightOfUseAssetAccumulatedAmortizations" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_OperatingLeaseMonthlyPayments" name="OperatingLeaseMonthlyPayments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_CountertpartyNameAxis" name="CountertpartyNameAxis" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" />
    <element id="HLEO_CountertpartyNameDomain" name="CountertpartyNameDomain" abstract="true" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_CashlessexerciseOfWarrants" name="CashlessexerciseOfWarrants" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_PreferredStockStatedValuePerShare" name="PreferredStockStatedValuePerShare" nillable="true" xbrli:periodType="instant" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_PreferredStockDividendRateIncreasePercentage" name="PreferredStockDividendRateIncreasePercentage" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_ConvertibleDebenturesPolicyTextBlock" name="ConvertibleDebenturesPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_PreferredStockSeriesDMember" name="PreferredStockSeriesDMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_UnsecuredNotesMember" name="UnsecuredNotesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_Consultant1Member" name="Consultant1Member" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_Consultant2Member" name="Consultant2Member" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLEO_NotePayableAgreement3Member" name="NotePayableAgreement3Member" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
</schema>
