dear,

I have gathered backups from op7 HMIs in our industry but now i want some changes in their program. is it possible to edit the files saved by prosave, if not how can i make new program for op7 in protool??

 

you cannot edit prosave files, they're the compiled version of the original protool project.

Should you have to modify them and don't own the original source, you must create a new OP7 application starting from scratch.