The X
extension name file type Classification
0 M3 DS Real Save File game files
00 The Ur-Quan Masters Saved Game Slot 0 File game files
001 Snes9x Slot 2 Saved State game files
32X Sega 32X ROM game files
3DS Nintendo 3DS ROM game files
3DSX Homebrew Launcher File game files
3DZ Nintendo 3DS ROM game files
555 Black & White Weather Settings File game files
68K SEGA Mega Drive & Genesis Classics ROM File game files
8LD Overlord 2 Language File game files
A26 Atari 2600 ROM game files
A52 Atari 5200 ROM game files
A78 Atari 7800 ROM game files
AAO America's Army Map File game files
ABK Need for Speed Underground Audio File game files
ABK Arena Opening Book File game files
ABS AB SuDoKu Saved Game game files
AC AC3D 3D Definition File game files
ACF Steam Application Cache File game files
ACWW Animal Crossing Wild World Pattern File game files
ACX Atari ST Program game files
ADT World of Warcraft Map File game files
AGB Game Boy Advance ROM game files
AGE3REC Age of Empires 3 Recording game files
AGE3SAV Age of Empires 3 Save File game files
AGE3SCN Age of Empires 3 Scenario File game files
AGE3XREC Age of Empires 3: The WarChiefs Recording game files
AGE3XSAV Age of Empires 3: The WarChiefs Save File game files
AGE3YREC Age of Empires 3: The Asian Dynasties Recording game files
AGE3YSAV Age of Empires 3: The Asian Dynasties Save File game files
AGX AGT Game File game files
AI Battlefield 2 Artificial Intelligence File game files
AIN Source Engine Compiled AI Nodegraph File game files
AIR M.U.G.E.N. Animation File game files
AIV Stronghold Crusader AI Village File game files
ALR ADRIFT Language Resource File game files
AM1 Adventure Maker game files
AN2 Croc Legend of the Gobbos Animation File game files
APP Wii U Game Data File game files
AR Midtown Madness Data File game files
ARC African Safari Data File game files
ARCH00 F.E.A.R. Game Archive game files
ARENA Quake 3 Engine Arena File game files
ARK ARK: Survival Evolved World File game files
ARKPRO ARK: Survival Evolved Player Profile File game files
ARKTRIBE ARK: Survival Evolved Tribe File game files
ARP Audition Replay File game files
ARS Carmageddon Saved Game game files
ASH KoLmafia ASH Script game files
ASH Audiosurf Audio Metadata File game files