.CST File

File extension cst is associated with Commonspace, a collaborative writing software package, developed by Sixth Floor Media.

A .cst file contains document created and saved in Commonspace.

MIME types:
application/vnd.commonspace

This cst file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

How to open:

Use Commonspace to open .cst document files.

How to convert:

Use compatible tools to export .cst files to other formats.