Hi, this might help after some tinkering - nut utility - that I've written for various purposes when I was a postdoc. There is a function that properly parses XPLOR restraints. If you can program in Perl, you can write a function that saves data in Amber format after reading XPLOR.

Then there is the CCPN format converter, but I don't know if it handles Amber output.

Thanks for the script. I actually tried the CYANA files directly in AMBER and going through the error massages It worked fine.

I will try to use perl to create scripts for converting Xplor files to AMBER format.