and keep original file format
I have found some wallpapers with the same name and want to store in the same folder, but the new additions always want to replace the originals and I'm unable to rename them. When I try to rename a wallpaper, I get a warning message that the file will become unstable and it changes format if I proceed. Can I rename these files within Windows somehow, so they maintain stability and format, or do I need a 3rd party program?
Thanks for any help offered