Import gcode problem

Tried to import the gcode for a cat bed that started as a .tap file. The instructions said just change the “tap” to “gcode”.Now I get this error message from Easel:
Line 25: G64 P.01
The file contains invalid G-code syntax.
Any ideas how to edit these files? I don’t have any other software (newbie).

G-Code is plain text, so you can open it up in NotePad/Textedit. See and

G64 isn’t supported by Grbl, see: so you should modify your post-processor to not emit that.