Used by AutoCAD and AutoCAD LT. AutoCAD Tool Catalog. This file contains definitions for AutoCAD tool palettes.
This file contains the collection of clips (text snippets) you created with AceText.
file extension ATC is related to GT Thin Client command file.
The ATC file extension is associated with AttacheCase, a Japanese program for encrypting and decrypting files. The .atc files are used for the encrypted files created with the application.