Since you requested the file specifically for , you are looking for a Prog_emmc_firehose_xxxxx.mbn file. This is the "Firehose Programmer" file that allows the tool to communicate with the Qualcomm chipset on the Oppo A3s.
Backups:
Appendix — Quick checklist (copy/paste)
Click 'Load XML' and select rawprogram0.xml , followed by patch0.xml .
To flash the OPPO A5 (CPH1809) QFIL (Qualcomm Flash Image Loader)