I must admit, I was wondering if I was doing something wrong or if my game file was not supported, but I found a workaround.
I am using a Nintendo 3DS XL with update 9.2
When I export my save file as ramsave.bin, and try to run the program, nothing happens and my edits do not appear.
However, if I delete my original ramsav.bin file and rename the exported file ramsav.bin, and then go to to http://bit.ly/1Caycho to run rsavin.bin, it works. It's odd, but at least it works!
Thank you for making this tool!