The .inc file extension is most commonly associated with text files that contain headers, declarations, functions and other data that is referenced by an application's source code. These files can be used with Pascal, C/C++, Java, PHP and other programming languages.
The .inc file extension is also used for Astro windows files, JAWS text files, Microsoft Backup incremental files, Pov-Ray files, Total Commander language files and Internet connection files.
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If you have additional information about the INC file format or software that uses files with the INC suffix, please do get in touch - we would love hearing from you.