These zip files contain larger font files then original for X3:Terran Conflict game (tahoma13.tga and tahoma13.abc which reside in “root_game\f” folder)
1) Trebuchet MS 10 Font (preferred): x3tc_large_font_trebuchet10.zip (1006 downloads)
2) Trebuchet MS 11 Font : x3tc_large_font_trebuchet11.zip (971 downloads)
Extract them in the root game directory.
These files was made using the x3fontmaker: x3fontmaker.zip (361 downloads) (mirror)