.ICMS File

The icms file extension is associated with the RagTime, a software for Microsoft Windows and Apple Mac OS X (macOS) used for  tasks in the fields of graphical design, pre-press, office, and database publishing.

The icms file stores various data used  for internal purposes of the RagTime.

How to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.