How do I extract .RAR roms so they will be supported by my R4 DS card?

My R4 card for the DS does not support .RAR roms so this means I will have to extract them. How do I do this?

You can extract them with a program like 7-Zip.

http://www.7-zip.org/

How to set up your R4 card with out the set up disk

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