CA_ file extension
The table below provides useful information about the .ca_ file extension. It answers questions such as:
- What is the .ca_ file?
- What program do I need to open a .ca_ file?
- How can the .ca_ file be opened, edited or printed?
- How can I convert .ca_ files to another format?
Table of Contents
- ✅ Compressed Microsoft Cabinet File
- 🔄 .ca_ file converters
- 🚫 .ca_ file related errors
We hope you find this page helpful and a valuable resource!
1 extension(s) and 0 alias(es) found in database
✅ Compressed Microsoft Cabinet File

The CA_ file is a Compressed Microsoft Cabinet File. Some files in the software distribution are provided in compressed form. These files are indicated with an underscore character as the last character in their file type. CAB is the Microsoft Windows native compressed archive format.
Other types of files may also use the .ca_ file extension.
🚫 The .ca_ file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
Is it possible that the filename extension is misspelled?
We found the following similar file extensions in our database:
🔴 Can't open a .ca_ file?
When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:
Windows cannot open this file:
example.ca_
To open this file, Windows needs to know what program you want to use to open it...
If you don't know how to set the .ca_ file association, check the FAQ.
🔴 Can I change the extension of files?
Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.
If you have helpful information about the .ca_ file extension, write to us!