In the field of computers, there is a great variety of file types each of these file types has a different use and function. Although it might be difficult to keep track of all the several types of files and the extensions connected with them, knowing a handful of the most common file extensions can be quite helpful when exploring your computer. Below are the top one hundred file extensions together with the connected apps.
1. .TXT – Plain Text File
2. .DOC – Microsoft Word Document
3. .PDF – Portable Document Format
4. .XLS – Microsoft Excel Spreadsheet
5. .PPT – Microsoft PowerPoint Presentation
6. .JPG – JPEG Image File
7. .PNG – Portable Network Graphics Image
8. .GIF – Graphics Interchange Format
9. .HTM or .HTML – Hypertext Markup Language File
10. .ZIP – Compressed Folder
11. .RAR – Compressed Archive File
12. .EXE – Executable File
13. .DLL – Dynamic Link Library File
14. .BAT – Batch File
15. .SYS – System File
16. .INI – Initialization File
17. .TIF or .TIFF – Tagged Image File Format
18. .MP3 – Compressed Audio File
19. .WAV – Uncompressed Audio File
20. .MOV – QuickTime Movie File
21. .AVI – Audio Video Interleave File
22. .MP4 – MPEG-4 Video File
23. .FLV – Flash Video File
24. .SWF – Shockwave Flash File
25. .CSS – Cascading Style Sheet File
26. .JS – JavaScript File
27. .XML – Extensible Markup Language File
28. .VBS – Visual Basic Script File
29. .REG – Windows Registry File
30. .C – C Programming Language File
31. .CPP – C++ Programming Language File
32. .H – C/C++ Header File
33. .ASP – Active Server Page File
34. .ASPX – ASP.NET File
35. .JSP – Java Server Page File
36. .PHP – PHP Script File
37. .SQL – Structured Query Language File
38. .CLASS – Java Class File
39. .JAR – Java Archive File
40. .PL – Perl Script File
41. .PY – Python Script File
42. .RTF – Rich Text Format File
43. .DWG – Autodesk AutoCAD Drawing File
44. .DXF – Autodesk AutoCAD Drawing Exchange File
45. .DWF – Autodesk Design Web Format File
46. .ODT – OpenOffice.org Text Document
47. .ODS – OpenOffice.org Spreadsheet
48. .ODP – OpenOffice.org Presentation
49. .WPS – Microsoft Works Document
50. .DOCX – Microsoft Word 2007 Document
51. .XLSX – Microsoft Excel 2007 Spreadsheet
52. .PPTX – Microsoft PowerPoint 2007 Presentation
53. .DOCM – Microsoft Word Macro-Enabled Document
54. .XLSM – Microsoft Excel Macro-Enabled Spreadsheet
55. .PPTM – Microsoft PowerPoint Macro-Enabled Presentation
56. .DMG – Apple Mac OS X Disk Image
57. .ISO – Disk Image File
58. .BIN – Binary Disc Image
59. .TAR – Tape Archive File
60. .GZ – Gzip Compressed Archive File
61. .7Z – 7-Zip Compressed Archive File
61. .M4A – MPEG-4 Audio File
62. .AIF or .AIFF – Audio Interchange File Format
63. .OGG – Ogg Vorbis Audio File
64. .WMA – Windows Media Audio File
65. .MIDI – MIDI Music File
66. .FLAC – Free Lossless Audio Codec File
67. .APE – Monkey’s Audio File
68. .CUE – Cue Sheet File
69. .3GP – 3GPP Multimedia File
70. .AAC – Advanced Audio Coding File
71. .M4V – MPEG-4 Video File
72. .ASF – Advanced Systems Format File
73. .WMV – Windows Media Video File
74. .RM – Real Media File
75. .RA – Real Audio File
76. .RAM – Real Media RAM File
77. .DAT – Data File
78. .BMP – Bitmap Image File
79. .AI – Adobe Illustrator File
80. .EPS – Encapsulated PostScript File
81. .PSD – Adobe Photoshop File
82. .SVG – Scalable Vector Graphics File
83. .CDR – CorelDRAW Image File
84. .FNT – Font File
85. .FON – Font File
86. .TTF – TrueType Font File
87. .TORRENT – BitTorrent File
88. .VSD – Microsoft Visio Drawing
89. .PSP – Paint Shop Pro Image File
90. .SIT – StuffIt Archive File
91. .SITX – StuffIt X Archive File
92. .MPG – MPEG Video File
93. .3G2 – 3GPP2 Multimedia File
94. .AMR – Adaptive Multi-Rate Audio File
95. .M3U – Media Playlist File
96. .PLS – Audio Playlist File
97. .WPL – Windows Media Player Playlist
98. .APK – Android Package File
99. .APPX – Windows App Package
100. .MSI – Windows Installer Package