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CAS File - What is a .cas file and how do I open it?
Learn about .CAS files and view a list of programs that open them.
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Overview
What is a CAS file? A CAS file is a license file used by Autodesk products such as AutoCAD and Revit. It contains information that validates a purchased software copy. CAS files are used in a "cascading" license setup, where a network installation of the software can be used by multiple networked computers.
More Information CAS files use the filename CascadeInfo.cas . These files can potentially become corrupt if the computer unexpectedly crashes, denying access to the software. If this occurs, consult Autodesk support to resolve the issue. By default, the CascadeInfo.cas file is located in the following directory: Windows Vista/7 : C:\ProgramData\Autodesk\ADLM\ Windows XP : C:\Documents and Settings\All Users\Application Data\Autodesk\ADLM\ macOS : /Library/Application Support/Autodesk/Adlm/.config/
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DeveloperThe Creative Assembly
Popularity2.9 | 11 Votes
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.CAS File Extension
2 file types use the .cas file extension.
Autodesk Cascade License File
| Developer | Autodesk |
| Popularity |
3.1 | 18 Votes |
What is a CAS file?
A CAS file is a license file used by Autodesk products such as AutoCAD and Revit. It contains information that validates a purchased software copy. CAS files are used in a "cascading" license setup, where a network installation of the software can be used by multiple networked computers.
More Information
CAS files use the filename CascadeInfo.cas . These files can potentially become corrupt if the computer unexpectedly crashes, denying access to the software. If this occurs, consult Autodesk support to resolve the issue.
By default, the CascadeInfo.cas file is located in the following directory:
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Programs that open CAS files
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Windows
Autodesk AutoCAD 2025
Free Trial
Autodesk MEP
Paid
Autodesk Revit Structure
Free Trial
Autodesk AutoCAD Architecture
Free Trial
Mac
Autodesk AutoCAD 2025
Free Trial
Category: Misc Files
Updated: March 28, 2022
Total War Model File
| Developer | The Creative Assembly |
| Popularity |
2.9 | 11 Votes |
A CAS file may also be a 3D model used by some games in the Total War strategy game series. It may contain a model of a building, unit, or other game object. CAS files are saved with .TGA and .DDS images used for texturing the models.
How to open a CAS file
CAS files can be imported and exported with Autodesk 3ds Max modeling software using the Vercengetorix CAS Importer/Exporter script.
Programs that open or reference CAS files
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The Creative Assembly Total War: ROME II
Paid
Autodesk 3ds Max 2023
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Category: 3D Image Files
Updated: March 28, 2022