ive got the same problem bt i managed 2 recover the files using Easeus deleted file recovery from download.com bt i cant open up the file coz i dont know wat software 2 use

It's a ZIP file, you will need winzip or winrar or something similar. This will do the trick: TUGZip 3.3 - all in one freeware archiving utility. It can unzip & unrar files & is a free program, unlike winrar.

how do you use this program to open the recovered file, coz it doesnt seem to hve a file format?

Try just changing the extension of a recovered file to it's original format e.g. mp3

If that works then do it to all of them.