EdWord was written using GFA Basic, so the source code is provided as a .GFA file. This is a binary file that only GFA Basic can read (it contains various inlined binary code for things like bitmaps and machine code implementations of certain critical functions). I will also provide ASCII versions where possible, though these will not include the binary sections.
EDWORD_41.GFA Version 4.1, GFA file (411 KB)
EDWORD_41.TXT Version 4.1, ASCII text (446 KB)