File extension Details of UTC, UOP, UT2MOD, CGR, CHK, CGZ, CTY, CGF, COL

Name:	UTC
File Type:	Bioware Creature File
Popularity:	3
Category:	game
File Description:	Creature created using Bioware's Aurora 3D rendering engine; can interact with objects and other creatures; may be controlled by artificial intelligence or a human player. Creature files are used by various video games including Neverwinter Nights, Star Wars: Knights of the Old Republic, and other programs.
Open Programs:	Windows Referenced by various video games

Name:	UOP
File Type:	Ultima Online Patch File
Popularity:	3
Category:	game
File Description:	Patch or update file that updates the Ultima Online video game; referenced by the Ultima updater and typically should not be opened manually; can be edited with third-party programs to modify the gameplay.
Open Programs:	Mac OS Electronic Arts Ultima Online Windows Electronic Arts Ultima Online Edit with ChangeUOP or MichelAngelo

Name:	UT2MOD
File Type:	Unreal Tournament 2003/2004 Module File
Popularity:	3
Category:	game
File Description:	Self-extracting installer archive known as a "UMOD installer;" contains modification data for Unreal Tournament 2003 or 2004; contains compressed files that can be installed to modify the look and feel of the gameplay. NOTE: UMOD installer files for the original Unreal Tournament use the .UMOD file extension.
Open Programs:	Mac OS Epic Games Unreal Tournament 2003 or 2004 Windows Epic Games Unreal Tournament 2003 or 2004 Linux Epic Games Unreal Tournament 2003 or 2004

Name:	CGR
File Type:	Audiosurf Data File
Popularity:	3
Category:	game
File Description:	Data file referenced by Audiosurf, a music-adapting puzzle racing game where levels are determined by songs; dozens of CGR files may be installed within the Audiosurf subfolders. Audiosurf CGR files include actors, effects, environments, intros, renderings, sounds, scores, song selectors, stages, support documentation, and GUI information.
Open Programs:	Windows Audiosurf

Name:	CHK
File Type:	StarCraft Chunk File
Popularity:	3
Category:	game
File Description:	Uncompressed Starcraft map included with the Blizzard installer CD; similar to a .MPQ formatted file, such as a .SCM or .SCX scenario file, but is not compressed into an archive format.
Open Programs:	Mac OS Blizzard StarCraft Windows Blizzard StarCraft

Name:	CGZ
File Type:	AssaultCube Map File
Popularity:	3
Category:	game
File Description:	Game map used by AssaultCube (formerly ActionCube), a first-person shooter based on the game "Cube;" contains the layout and objects included in the level; should be stored in the "/assaultcube/packages/maps/" directory.
Open Programs:	Mac OS Rabid Viper Productions AssaultCube Windows Rabid Viper Productions AssaultCube Linux Rabid Viper Productions AssaultCube

Name:	CTY
File Type:	SimCity City File
Popularity:	3
Category:	game
File Description:	City data file used by early versions of SimCity; contains city layouts and objects (buildings, roads, trees, etc.) as well as settings, such as the starting amount of money for the city; used as a starting point for building a city. SimCity's default city settings are saved in a file named "default.cty."
Open Programs:	Mac OS Maxis SimCity or SimCity 2000 Windows Maxis SimCity or SimCity 2000

Name:	CGF
File Type:	Far Cry Model File
Popularity:	3
Category:	game
File Description:	3D model format used to store models of characters and levels in the game Far Cry by Ubisoft; stored in the .PAK files that are installed with Far Cry; can be modified to create custom characters and levels.
Open Programs:	Windows Ubisoft Far Cry CGF Model Reader

Name:	COL
File Type:	Grand Theft Auto Collision File
Popularity:	3
Category:	game
File Description:	Stores collision information for a car or other object in Grand Theft Auto (GTA) III, Vice City, and San Andreas; defines what parts and how much of the automobile can be damaged. COL files can be edited with CollEditor or Collision File Editor II.
Open Programs:	Windows Rockstar Games Grand Theft Auto 3 Edit with Collision File Editor

Name:	HAM
File Type:	Descent 2 Resource File
Popularity:	2
Category:	game
File Description:	Contains properties of objects used in the Descent 2 3D action game
Open Programs:	Mac OS Interplay Descent 2 Windows Interplay Descent 2