Hidden file on Windows 10

I have a super old program on a Windows 10 computer with which I saved a .PIC file that I want to transfer to a Mac to view the image. The file seems to save ok because when I try saving it again, I’m told that the file already exists. Unfortunately, I can’t view it in the directory. When I selected the “Show hidden files, folders, and drives” option under File Explorer, nothing changes. How do I find and transfer this file?