.RSRC File Extension
File TypeMacintosh Resource File
This file is saved in a binary format, which requires a specific program to read its contents.
What is an RSRC file?
File commonly used by older Mac OS applications (Mac OS 9 and earlier), but also used by some Mac OS X applications; contains a library of data and can include images, icons, and custom data; also used by Mac OS X for storing system themes.