File extensions in alphabetical order #A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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#	File extension	Developer
1	.M - Objective-C Language Source Format	Apple
2	.W - OpenEdge Architect Source Code Format	Progress Software
3	.XSB - XACT Sound Bank	Microsoft
4	.JKS - Jedi Knight Save	LucasArts Entertainment Company, LLC
5	.P7E - SecureSoft Encrypted	N/A
6	.NM7 - Navitel Navigator Map	GPS Moldova
7	.CRYPT - WhatsApp Messenger Encrypted Message Database Backup	WhatsApp Inc.
8	.PKPASS - Apple Passbook Pass Format	Apple
9	.THUMBDATA - Google Android Thumbnail Database	Google Inc.
10	.RVF - RichView Document	Sergey Tkachenko
11	.THUMBDATA3--1967290299 - Android Thumbnail Index	Google Inc.
12	.AV - Final Draft AV Document	Final Draft, Inc.
13	.DC0 - OpenBSD	The OpenBSD Project
14	.DGR - DeltaGraph Document	RockWare, Inc.
15	.SPL7 - SPlan Data	ABACOM
16	.THUMBDATA3--1763508120 - Android Thumbnail Index	Google Inc.
17	.THUMBDATA4--1967290299 - Android Thumbnail Index	Google Inc.
18	.SOR - Corel Paradox Sort Definition	Corel Corporation
19	.P7S - PKCS #7 Signature Format	N/A
20	.ROFL - Leagues Of Legends Replay	Riot Games Inc.
21	.ASP - Active Server Page Script Page	Microsoft
22	.NOMEDIA - Google Android OS System Format	N/A
23	.THUMBDATA4--1763508120 - Android Thumbnail Index	Google Inc.
24	.LBF - Bioshock 2 Configuration	2K Games
25	.PES - Brother Embroidery File Format	N/A
26	.P7Z - S/MIME Compressed Message	N/A
27	.ENC - Encore Musical Notation File Format	N/A
28	.UFDR - UFED Physical Analyzer Report Package	Cellebrite Mobile Synchronization LTD.
29	._PLAYMUSICID - Android Google Play Music Id	Google Inc.
30	.C - C/C++main Source Code File Format	N/A
31	.SDOC - Microsoft Word Sealed Document Format	Oracle
32	.PRNX - XtraReports Report	Developer Express Inc.
33	.GCODE - G-code Source	N/A
34	.THUMBDATA3 - Google Android Thumbnail Database	Google Inc.
35	.STRG - E-Viewer Recorded Video Copy Backup	AAT Holding sp. z o.o.
36	.MP - Autodesk Maya Personal Learning Edition Format	Autodesk
37	.SVE - Simutrans Format	Simutrans
38	.PART - Partial Download Format	N/A
39	.H - C/C++ Header Format	N/A
40	.RET - RETScreen Project Format	Natural Resources Canada
41	.DCV - DriveCrypt Encrypted Volume	SecurStar
42	.THUMBDATA5--1967290299_0 - Android Thumbnail Index	Google Inc.
43	.MUSX - Min‐U‐Script Xpress Transcript Data	Moretti & Murphy Reporting
44	.PTT - Microsoft MapPoint Template Format	Microsoft
45	.CID - CoDiagnostiX User Defined Implant	Institut Straumann
46	.LXK - COREX Lexicon Link-up	N/A
47	.JPG_128X96 - Android Picture	N/A
48	.APPX - Microsoft AppX Application Package Format	Microsoft
49	.MBZ - Pogoshell NES Emulator Plugin	N/A
50	.APK - Google Android Package Format	Google