.CVSRC File Extension
What is a CVSRC file?
File created for TortoiseCVS, a freely shared Concurrent Versions System (CVS) client for Microsoft Windows; contains default options that are added to cvs_commands within CVS instead of using other shell scripts.
If you don't want to use the options in the file, use the -f global option, for e.g., cvs -f update.
NOTE: The CVS keeps track of project progress and all its changes in a set of files. By doing this, CVS allows different users to collaborate on projects by creating working copies of the work then sending their completed work to the server. Other collaborators can then see their work and work off of those files.