This is http upload to use a file Chooser widget to select a Log Extract file from your PC.
In this particular case, the PC file should be from a Text Download of a Mainframe file that contains Log records in their native format ie Block type Variable and blocks up to 32K in length. The process that consumes the file assumes that these log records are only from program=COBEVS02 and that the XML root nodes "COMServiceReply" are present. If the upload contains no Log records of this type, the subsequent processing will return zero entrys in a table designed to Report Sanchez responses.