If it's an 001 file then there is probably a .RAR and a .000 which go with it. That 001 file would just be one file out of a set.
One of the questions I’m frequently asked as a Mac writer—and a question we see quite often in the Macworld forums —is, “My hard drive is getting full; how can I see which files are taking up all that ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results