Best would be you create a Checksum from a working file BEFORE uploading for to download, and provide that Checksum together with a download (maybe as a compressed single file?!)!
@dhjohns thank you for this. Originally I was using 3 - 4 different tools to do this and now I just need 2. 1) To download https://forums.mydigitallife.net/threads/uup-dump.75052/page-5#post-1368477 2) Yours to do the rest https://forums.mydigitallife.net/threads/dhjohns-sku-toolkit.75198/ Clearly, makes my life easy.