finding accountant's trail balance ( atb2) software for windows 7

I have the old version of ATB2 or accountant's trial balance I purchased from the AICPA years ago ........it worked on windows xp but will not work on Windows 7 or we call it Windows 10 because of the 16 bit vs 32 bit features , can I convert and save my old existing files at a reasonable cost and laod in a version that will work ?

I'm not sure I understand your question. You want to know if you can convert the files so that they will work on Windows 7?

I suggest:

a) Installing Windows XP on a Virtual Machine such as VirtualBox and running the program from there.

I've been using v7.1, since it seems less bloated than v6 or v8. I don't think I tried v9, or if I did, it must have been too bloated as well.