AutoCAD catalog
File type: Settings, options, themes or skins file
An atc file extension is related to the AutoCAD a CAD modeling tool. An atc file stores definitions for AutoCAD tool palettes.
Found 6 different file type records with the same atc filename suffix.
File type category:
Settings, options, themes or skins file
Date updated: August 5, 2019
The atc file extension is associated wih the AutoCAD and AutoCAD LT CAD drawing and modeling tools.
The atc file stores AutoCAD Tool Catalog. This file contains definitions for AutoCAD tool palettes.
Use AutoCAD to work with *.atc files.
You can export *.atc files to xtp format with AutoCAD.
Software applications that can open atc files:
Microsoft Windows
Apple macOS / Mac OS X
Software apps that create atc files:
Microsoft Windows
Apple macOS / Mac OS X
Software apps that manage or store settings in atc files:
Microsoft Windows
Apple macOS / Mac OS X
File type category:
Various data file
Date updated: December 18, 2018
The atc file extension is associated with the AceText software tool that simplifies working with text by enabling you to store, manage, edit and reuse text from a central location.
The .atc file contains the collection of clips (text snippets) created with AceText.
Probably not meant to be accessed by the user.
Probably cannot be converted to anything else.
Software applications that handle other tasks involving atc files:
Microsoft Windows
File type category:
Various data file
Date updated: November 15, 2017
The atc file extension is associated with ACUCOBOL-GT development tool for Cobol programming language and run-time machine for Cobol applications, developed by Micro Focus Ltd.. The .atc file stores command data for ACUCOBOL-GT Thin Client.
Software applications that handle other tasks involving atc files:
Microsoft Windows
File type category:
Encoded and encrypted file
Date updated: September 19, 2017
The atc file extension is associated with the AttacheCase, a Japanese program for encrypting and decrypting files.
The .atc files are used for the encrypted files created with the application.
Use AttacheCase to open .atc encrypted files.
It is not possible to convert the atc extension files.
Software applications that can open atc files:
Microsoft Windows
AttacheCase
Software apps that create atc files:
Microsoft Windows
AttacheCase
Software applications that handle other tasks involving atc files:
Microsoft Windows
AttacheCase
File type category:
Game file
Date updated: October 4, 2026
The atc file extension is associated with SimCity 4, a city-building and strategy game developed by Maxis and published by Electronic Arts for Microsoft Windows and Apple Mac OS X.
An atc file stores a collection of textures used by the game's animation system. It is one of the resource files that SimCity 4 reads while displaying animated content.
The format is intended for use by the game rather than as a general-purpose image or archive format. It remains relevant mainly to existing SimCity 4 installations and custom game content.
SimCity 4 for Microsoft Windows opens and uses these files as game resources. Place the file in the location required by the relevant game content, then start the game so it can load the resource.
An atc file normally cannot be meaningfully viewed by double-clicking it or opening it in a standard image editor.
There is no standard conversion for a SimCity 4 animation texture collection. Converting the file to an ordinary image format would not preserve the collection as a game resource.
Keep the original atc file when it is needed by SimCity 4; use the game or compatible SimCity 4 content-creation tools rather than a general file converter.
Software applications that handle other tasks involving atc files:
Microsoft Windows
File type category:
Various data file
Date updated: April 16, 2019
Record marked as obsolete and not updated for a long time.
The atc file extension is associated with the Sniffer network application created by McAfee that allows users to control activity on a local area network. The .atc file contains captured data.
Sniffer is obsolete product.
Use Wireshark to open *.atc Sniffer capture files.
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