Steinberg Cubase compressed font file
File type: Font and typeface file
A .$on file is a compressed font file used by Steinberg Cubase.
It contains font data for the Cubase application and is not normally intended to be opened as a document.
File type category:
Font and typeface file
Date updated: September 22, 2026
.$on files belong to Steinberg Cubase, Steinberg's digital audio workstation for Microsoft Windows. They store compressed font resources used by the software.
The file is an internal Cubase support file rather than a general-purpose font file. Cubase uses it as part of its installed program resources, so it normally remains in the location where the software placed it.
On Microsoft Windows, open a .$on file through the installed copy of Cubase, if the program requires it. The file is normally loaded automatically by Cubase and does not need to be opened separately.
Other font viewers and text editors are not expected to interpret this compressed Cubase resource correctly.
A .$on file cannot be meaningfully converted with a general-purpose font converter because it is a compressed Cubase resource, not a standard standalone font.
Keep the file in its original location and allow Cubase to use it. Do not rename it or replace it with a different font file.
Software applications that handle other tasks involving $on files:
Microsoft Windows
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