DMG – an Apple compressed/encrypted format.DAA – DAA: Closed-format, Windows-only compressed disk image.xaml – Used in programs like Visual Studio to create exe files.

cals – JEDMICS image files, a DOD system.

Cabinet files are used to organize installation files that are copied to the user's system.

cab – A cabinet (.cab) file is a library of compressed files stored as one file.

BMP – Bitmap Image – You can create one by right-clicking the home screen, next, click new, then, click Bitmap Image.

Blend – An external 3D file format used by the animation software, Blender.

bkf – Microsoft backup created by NTBackup.c

BIN – compressed archive, can be read and used by CD-ROMs and Java, extractable by 7-zip and WINRAR.

BA – BA: Scifer Archive (.ba), Scifer External Archive Type.

ASS, SSA – ASS (also SSA): a subtitles file created by Aegisub, a video typesetting application (also a Halo game engine file).

ARC – Nintendo U8 Archive (mostly Yaz0 compressed).

APPX – Microsoft Application Package (.appx).

APK – Android package: Applications installable on Android package format of the Alpine Linux distribution.

A – An external file extension for C/C++.

?Q? – files that are compressed, often by the SQ program. While MS-DOS and NT always treat the suffix after the last period in a file's name as its extension, in UNIX-like systems, the final period does not necessarily mean that the text after the last period is the file's extension. Some filenames are given extensions longer than three characters. Examples of operating systems that do not impose this limit include Unix-like systems, and Microsoft Windows NT, 95- 98, and ME which have no three character limit on extensions for 32-bit or 64-bit applications on file systems other than pre-Windows 95 and Windows NT 3.5 versions of the FAT file system. Many operating systems do not limit filenames to one extension shorter than 4 characters, as was common with some operating systems that supported the File Allocation Table (FAT) file system. Filename extension it is usually noted in parentheses if they differ from the file format name or abbreviation. This is a list of file formats used by computers, organized by type. You can help by adding missing items with reliable sources. This is a dynamic list and may never be able to satisfy particular standards for completeness.

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