When you download an album from Bandcamp, it arrives on your computer in a compressed format called zip. Before you can add the music to your library and listen to it, you’ll need to decompress, or “unzip” it. Doing so is very easy:
If you’re on a Mac, double-click the file. You’re done.
If you’re on a PC, right-click the file and choose Extract All... You’re also done. Don’t see an “Extract All...” option? Try renaming the file to something simple, like “music.zip”. The important thing is to make sure the name ends with “.zip”. Then right-click it again. You should now see “Extract All...” in the menu. If you still don’t see an Extract All... option, double-click the file. This will open a window listing the files inside. Press Ctrl+A to select all the files, then drag them into a folder or onto your desktop. This will extract them, for sure.
What!? That doesn’t work either? You may be amongst the elite few who simply don’t have unzipping software built in to their PC. Easy to rectify: there are some free unzipping programs for Windows such as Zipeg, 7-Zip, and PeaZip.
If you’re on an Android device, you may need to download a third party app. More info here.