Five Steps to Open CAS Files

If you have CAS files that you need to open, but you’re not sure how, follow these steps.


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Step 1: Double-click the file.

Locate the CAS file icon and double-click it. If you have the right program installed, it should open the file automatically. If it doesn’t, move on to Step 2.

Step 2: Look for another program.

If the CAS file doesn’t open when you double-click it, you probably don’t have the right program on your computer. There are several popular programs that can be used to open a CAS file. Try one of the three most common programs: FLUENT Case, Comma-delimited ASCII File, or Quest Compiled Adventure Game.

Step 3: Check the file type.

If none of the above programs will open your CAS file, check the file type to make sure you have a program that can open that type of file. Most CAS files are Misc Files, but there’s a chance it might be another type.

You can find this information in the file’s properties. On a Windows computer, just right-click the file and click properties, and look for the file type under “Type of File.” On a Mac computer, right-click the file and click “More info,” and look for the file type under “Kind.”

Step 4: Get help from a developer.

If you can’t figure out how to open a CAS file, a developer can probably tell you how. Find the program you have in the table below and contact the developer of that program.

Program Name Developer Name
FLUENT Case Fluent Incorporated
Comma-delimited ASCII File PC Software Company
Quest Compiled Adventure Game Axe Software
Atari Cassette Image File Atari
Cascade DTP Ver. 3 Layout File Price Media
Videoton TVC Computer Tape File Microsoft Developer
Casio Calculator Program Casio Computer Co. Ltd.

Step 5: Find a universal file viewer.

The easiest way to open a CAS file, or any kind of file, is to use a universal file viewer like File Magic (Download). You can use it to open many different file formats. If it’s not compatible, the file will just open in binary.

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