A tcs file extension is related to the TOPCALL voicemail player. Probably obsolete format.
There is one other file type using
the TCS file extension!
.tcs - TreeComp snapshot data
TCS file extension - TOPCALL voicemail player data
What is tcs file? How to open tcs files?
File type specification:
The tcs file extension is associated with the Voicemail player created by TOPCALL now Kofax.
The tcs file stores some kind of data used by TOPCALL voicemail player.
The TOPCALL voicemail player seems to be obsolete product without support from developer.
This tcs 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.