Handling RAR and PAR Files But there are two things to watch out for when downloading NZB files. Quite often, NZB files contain compressed RAR files. Like a zip file, RAR compresses all the bit parts into files smaller than the original size so download time is shorter. To unzip RAR files, download a software like WinRAR for PC and UnRar for Mac.

PAR or parity files are also found in many NZB files. These are files imbedded inside an NZB file that repair the parts of the file that becomes damaged during the uploading or downloading process. Again, download an appropriate software, say QuickPar for PC, and UnRar for Mac, and you'll be able to run the Par file to check the NZB's damage status and repair where necessary.
Sounds all too complicated? Well here's some good news for you.

These days, top newsreaders like Newsleecher and Grabit have built-in functions that will handle PAR and RAR files automatically. Such newsreaders will unzip, open and run these PAR and RAR files as it opens an NZB file.

Just click a button and it's done! A file was damaged? You wouldn't even have to know about it.
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