Well, just researched the issue a bit, and the best thing in the freeware realm I could come up with is Vember Audio’s Shortcircuit 1 (v2 wouldn’t load rx2 files at all)
As I have never used rex loops (or any loops for that matter) before, I downloaded a few free files and loaded them in SC. Most of them loaded just fine and with no issues, with all the slices and so on. But there are some loops that SC couldn’t open, opening an error box saying that the buffer is too small etc.
So you could try and see if SC will open your files adimatis. If so, then you could easily bounce the grooves to a wave file for further mixing and processing.
On the other hand ( as an alternative ) you could make your own loops and grooves by using wave samples. Surely there are 100 times more of them in the internet, and a ton of free ones.
This is a great little plugin for the purpose
LoopDrive v4
http://www.yedey.com/2009/12/loopdrive-updated-to-version-4/
http://www.youtube.com/watch?v=IUrcVHBNcwQ
Create your loops, tempo sync them to the host ( or don’t ), with some built-in effects and filters.
Alternatively there are other freeware gems: Beatburner and ABS3
http://www.gersic.com/plugins/index.php?daCat=18
(just scroll down)
This should be more than enough for building your very own grooves.
I hope this helped.
Best Vibes
ॐC☸Cॐ