| Apple Mac OS PowerPC Executable Format | |
| N/A | |
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OSX is a file format used by Mac OS X operating system. OSX file contains a header for a compiled PowerPC application (RISC processors). PowerPC applications were run using Rosseta, a software emulator available for Mac OS X. Rosseta is no longer supported by Apple.
OSX files and Rosseta emulator were supported in Mac OS X 10.4, 10.5, and 10.6. Newer versions of this operating system not only not include Rosseta in its program list, but also prevent it from being installed.
Mac OS
| .a6p | Adobe Authorware Application Format |
| .action | Mac OS X Automator Action Format |
| .actm | Autodesk AutoCAD Action Macro Format |
| .ahk | AutoHotkey Script Format |
| .air | Adobe AIR Rich Internet Applications |
| .apk | Google Android Package Format |
| .app | MAC Application Package Or Core System Service Format |
| .applescript | AppleScript Script Format |