Thanks for looking. I've written an assembler project to control an XMEGA-A3BU Xplained board. I got the program working, but then had to put it away for a few years. Then, the hard disk crashed and I lost the source code. Shame on me. I was able to download the hex file from an XPlained board using the latest version of Atmel studio, but cannot duplicate one user's experience in AVR studio wherein the program recreated an assembler file based on the hex file contents. I was able to find other .asm versions that do not work, but if I could get this hex file into AVR assembler format, I could get the program back into original form and working. Can anyone here assist me with this? I understand someone wrote such a program (converts .hex to .asm file format), but I have not had luck trying to download from the link supplied (went to a Chinese site). It is used as a controller for a multiband amateur radio, with OLED display and 3 DDS boards. I would really appreciate help here, as I spent over 6 months getting this working, and have now lost the source.