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.DYLIB File Extension

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File TypeMach-O Dynamic Library

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CategoryDeveloper Files


File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.


Macintosh library that contains declarations and functions referenced by a Mac OS X application; loaded dynamically by various programs when needed, which allows for efficient use of memory; may be referenced by open applications or by Apple Xcode during software development.

More Information

Mach-O is short for "Mach Object" and refers to a file format used by systems based on the Mach kernel, such as NeXTSTEP and Mac OS X.

Programs that open DYLIB files
Apple Xcode
Updated 9/7/2009