Opening R File
R extension is associated with right channel audio file. You can open r extension files with Apple itunes or Music Player.
1- It is a right output file which created by softwares that used with Stereo sound editing. You can open r extension files with any current music player software.
2- Addition: The softwares which compiled for Progress database also use r extension. You can get detailed information from progress.com.
Opening methods of R file
Apple iTunes or similar music player
Links to opening R file