API does not download the extract file

We have created a hcm extract where we are pulling all the employees and all their historical assignment data which is generating a xml output file of around 530 mb data. We are facing the issue when we are trying to download the file using below SOAP API url:

Operation: POST

URL: https://iaziqy-dev1.fa.ocs.oraclecloud.com:443/idcws/GenericSoapPort

Body:

<soapenv:Envelope xmlns:soapenv=" " xmlns:ucm="http://www.oracle.com/UCM">

   <soapenv:Header/>

   <soapenv:Body>

      <ucm:GenericRequest webKey="cs">

         <ucm:Service IdcService="GET_FILE">

            <ucm:Document>

               <ucm:Field name="dDocName">HCMINTBRAIN_750202</ucm:Field>

   <ucm:Field name="RevisionSelectionMethod">Latest</ucm:Field>