saml response

saml-response.xml

<samlp:Response
        ID="_a2aec7e7-1843-443c-9af3-da94e69d5113"
        Version="2.0"
        IssueInstant="2020-01-21T06:59:36.653Z"
        Destination="https://localhost:4447/acs"
        InResponseTo="_9ecd6234ec0396a49a33a8a2ae0a9f8d2acc1b2a" xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol">
  <Issuer xmlns="urn:oasis:names:tc:SAML:2.0:assertion">https://sts.windows.net/xxxx-xxxx-xxxx/
  </Issuer>
  <samlp:Status>
    <samlp:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Success"/>
  </samlp:Status>
  <Assertion ID="_cc074cf4-34f6-464e-a198-6440bd998b00" IssueInstant="2020-01-21T06:59:36.638Z" Version="2.0"
             xmlns="urn:oasis:names:tc:SAML:2.0:assertion">
    <Issuer>https://sts.windows.net/xxxx-xxxx-xxxx/</Issuer>
    <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
      <SignedInfo>
        <CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
        <SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/>
        <Reference URI="#_cc074cf4-34f6-464e-a198-6440bd998b00">
          <Transforms>
            <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
            <Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
          </Transforms>
          <DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
          <DigestValue>HTSKMJlCtFcMrp6zsNiOtV4mrpP8sQi2IJHGqwjgqWU=</DigestValue>
        </Reference>
      </SignedInfo>
      <SignatureValue>
        Te0d/GEDA3mwrD6nAq8fLjj3iNIfxxxx-xxxx-xxxx==
      </SignatureValue>
      <KeyInfo>
        <X509Data>
          <X509Certificate>
            MIIC8DCCAdigAwIBAgIQc5Zjxxxx-xxxx-xxxx
          </X509Certificate>
        </X509Data>
      </KeyInfo>
    </Signature>
    <Subject>
      <NameID Format="urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress">truong@xxxx-xxxx-xxxx</NameID>
      <SubjectConfirmation Method="urn:oasis:names:tc:SAML:2.0:cm:bearer">
        <SubjectConfirmationData InResponseTo="_9ecd6234ec0396a49a33a8a2ae0a9f8d2acc1b2a"
                                 NotOnOrAfter="2020-01-21T07:59:36.450Z" Recipient="https://localhost:4447/acs"/>
      </SubjectConfirmation>
    </Subject>
    <Conditions NotBefore="2020-01-21T06:54:36.450Z" NotOnOrAfter="2020-01-21T07:59:36.450Z">
      <AudienceRestriction>
        <Audience>https://localhost:4447/saml/metadata</Audience>
      </AudienceRestriction>
    </Conditions>
    <AttributeStatement>
      <Attribute Name="http://schemas.microsoft.com/identity/claims/tenantid">
        <AttributeValue>xxxx-xxxx-xxxx</AttributeValue>
      </Attribute>
      <Attribute Name="http://schemas.microsoft.com/identity/claims/objectidentifier">
        <AttributeValue>xxxx-xxxx-xxxx</AttributeValue>
      </Attribute>
      <Attribute Name="http://schemas.microsoft.com/identity/claims/displayname">
        <AttributeValue>Truong</AttributeValue>
      </Attribute>
      <Attribute Name="http://schemas.microsoft.com/identity/claims/identityprovider">
        <AttributeValue>https://sts.windows.net/xxxx-xxxx-xxxx/</AttributeValue>
      </Attribute>
      <Attribute Name="http://schemas.microsoft.com/claims/authnmethodsreferences">
        <AttributeValue>http://schemas.microsoft.com/ws/2008/06/identity/authenticationmethod/password</AttributeValue>
        <AttributeValue>http://schemas.microsoft.com/claims/multipleauthn</AttributeValue>
      </Attribute>
      <Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name">
        <AttributeValue>truong@xxxx-xxxx-xxxx</AttributeValue>
      </Attribute>
    </AttributeStatement>
    <AuthnStatement AuthnInstant="2020-01-17T09:06:03.241Z" SessionIndex="_cc074cf4-34f6-464e-a198-6440bd998b00">
      <AuthnContext>
        <AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:Password</AuthnContextClassRef>
      </AuthnContext>
    </AuthnStatement>
  </Assertion>
</samlp:Response>

how to create this file can you please assist me?

You can install this plugin and do a SAML authentication. You can see the SAML message in the plugin console.
https://chrome.google.com/webstore/detail/saml-chrome-panel/paijfdbeoenhembfhkhllainmocckace

I use the same way to capture this SAML file. Hope it helps.