FNT

Star Wars: Dark Forces - FNT File format

The .FNT files contains fonts and I usually start examining this type of files because they're usually very easy to read. In this case they aren't an exception.

Well, basically, behind a font file there is usually a small header specifying which glyphs (characters) are in the file and some other properties like glyph spacing, line spacing, etc.

.FNT Header

Range	Size	Value	Description
0x00-0x03	4	FNT\x15	File signature
0x04	1	?	Glyph height
0x05	1	?	Glyph spacing (width of the space)
0x06	1	?	X spacing (space between glyphs)
0x07	1	?	Y spacing (space between lines)
0x08	1	?	Range start (first character in this file)
0x09	1	?	Range end (last character in this file)

.FNT Glyph

Range	Size	Value	Description
0x01	1	?	Glyph width
...	...	?	Glyph bitmap