In //Paper Mario: The Thousand-Year Door//'s root file structure, the game's tile texture graphics is stored in root/b.

The tpl format is a compressed file format that contains .tga files, which can be opened by most graphical editing programs.

=====root/b=====
There are more than a dozen tpl files in the folder, and are assigned japanese names which indicate which tpl file holds which textures.

  * aaa (Mario Bros.' House, and prologue or "pro")
  * aji (X-Naut Fortress) ("stg7")
  * bom (Fahr Outpost) ("stg7")
  * dmo (Opening Demo) ("op_book" + "op")
  * dou (Pirate's Grotto) ("stg5")
  * eki (Riverside Station, interior) ("stg6")
  * end (Staff Credits)
  * global (Menus, tattles, and mail)
  * gon (Hooktail Castle) ("stg1")
  * gor (Rogueport)
  * gra (Twilight Trail) ("stg4")
  * hei (Petal Meadows) ("stg1")
  * hom (Riverside Station, exterior) ("stg6")
  * jin (Creepy Steeple) ("stg4")
  * jon (Pit of 100 Trials)
  * kpa (Bowser)
  * las (Palace of Shadow) ("stg8")
  * moo (The Moon) ("stg7")
  * mri (The Great Boggly Tree) ("stg2")
  * muj (Keelhaul Key) ("stg5"), also includes all dialogue at sea
  * nok (Petalburg) ("stg1")
  * pik (Poshley Heights + Poshley Sanctum) ("stg6")
  * rsh (Excess Express) ("stg6")
  * tik (Rogueport Sewers)
  * tou (Glitzville + Glitz Pit) ("stg3")
  * usu (Twilight Town) ("stg4")
  * win (Boggly Woods + Flurrie's House) ("stg2")
  * yuu (Pianta Parlor)