.ELC File Extension

Emacs Compiled Lisp File

Developer The GNU Project
3.6  |  8 Votes

What is an ELC file?

Compiled Lisp file created by Emacs, a customizable text editor; generated from a standard Lisp (.EL) file using the Emacs byte-code compiler; may contain Emacs configuration settings or may provide extra program functionality.

More Information

To compile an EL file, type the following command in Emacs:

byte-compile-file "filename.el"

Make sure to replace "filename.el" with the actual filename Lisp file you want to compile. The compiler will generate a compiled version of the file with the same filename and a ".elc" extension.

NOTE: Compiled files can be loaded and run faster than plain text Lisp files. Therefore, most Emacs extensions are saved as compiled ELC files.

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Programs that open or reference ELC files


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