There is only one file type that uses the .TBL extension:
StarCraft Information Table
Table file used by StarCraft, a real-time strategy game where players control units as Terran, Zerg, or Protoss races; contains text descriptions for in-game labels, such as names of units; used as a lookup table to display text during gameplay.
TBL files are commonly used to create "mods" for StarCraft game content and can be modified using a variety of editors. They often can be found within .MPQ files with the name stat_txt.tbl.
Updated: July 6, 2016