.rar files need help using them.

i have obtained 7.rar files of a "homebrew" game emulated for the psx. How do i use these? is there a process of making htem isos. because that all i know hwo to use.

sorry for flooding this website with newb questions but i just discovered the beauty of roms and been trying to get as much information as possible

thanks for all the help with everyhting

http://www.rarlab.com
Donwload WinRar, install it and right-click on the first .rar file. Choose extract.

Unrar them? And see what it contains whether that is an ISO or not.