I went into the sample editor and selected an area then went to the function pull down menu and the reverse function is grey out, no able to be chosen.

Kia Ora, have you tried not selecting anything and trying to process the whole file? Not sure if you can just reverse a selected area from memory. Also, what file format are you working in? Cheers, j

I tried selecting and not selecting same deal. When I imported the file into logic the file got converted to AIFF.

Is the file an Apple Loop? You cannot apply destructive changes in the Sample Editor to Apple Loops. You MUST bounce it as an audio file first. R