If you tell me or what you expect to find inside , I can give you more specific advice on viewing or converting the contents. How do I read a 7Z File - FME Community
To see what’s inside, you need a utility that can handle the .7z extension. On Windows DSC_3284.7z
"DSC" usually indicates a file from a digital camera (like Nikon or Sony), while "3284" is the sequence number. If you tell me or what you expect