The File Extensions Database

.ATC File Extension

  • Developer by: Autodesk
  • Category: Settings Files
  • Format: Binary

What is an .ATC file?

.ATC is AutoCAD Tool Catalog File

Tool catalog file used by the AutoCAD design and documentation CAD software; contains definitions for all of the tools in a user interface palette; used for storing tool configurations and customizing the AutoCAD workspace.

AutoCAD creates an ATC file whenever the user defines a new palette on the interface.

NOTE: You can export a palette stored in an ATC file using an .XTP file.

Programs that open AutoCAD Tool Catalog File
Autodesk AutoCAD 2018
Autodesk AutoCAD Civil 3D 2018

How to solve problems with ATC files

  • Associate the ATC file extension with the correct application. On :
    Windows: Right click on any ATC file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.ATC files". Mac: Right click (or Ctrl-click) the ATC file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .ATC is AutoCAD Tool Catalog File. Because only the current version supports the latest ATC file format. Search, therefore, e.g. on the Autodesk manufacturer website after an available .ATC is AutoCAD Tool Catalog File update.
  • To make sure that your ATC file is not corrupted or virus-infected, get the file again and scan it with antivirus software.