Hello,
I tried to export schematic file from EasyEDA version 6.4.19.4 to Altium version 21.3.1 (Build 25) and got the error "Load file error: Value was either too large or too small for an unsigned byte".
Layout file exported fine.
What is the problem.
Thanks
Altium higher version update the format, you can save it and reopen it at Altium
it work well at Altum17