Any file format that has been stored on your Pogoplug device or cloud can shared with Pogoplug.
Both Windows and Mac files may be shared on the same storage space.
If you are unsure which type of format to share, check with the recipient to note which types their applications may open. Just because you can send any file doesn't mean that their computer or mobile device has the applications and software necessary to open them (For example : .EXE files are for Windows and .DMG files are for Mac).
Pictures can be viewed in Gallery mode when opening the shared link and are can be viewed online. Music files can be streamed directly from the shared link.