CA file format description

Many people often share .ca files without providing instructions on how to use them. This can make it difficult for users to determine which program is compatible for editing, converting, or printing .ca files. To address this issue, we have created this page to offer assistance and guidance on handling .ca files. We provide information on compatible software, editing instructions and conversion options to help users effectively interact with .ca files.

Our aim is to simplify the process and promote seamless use of the .ca file format.

5 filename extension(s) found in our database.

.ca - Initial Telnet Cache

The CA data files are related to Telnet Server. The CA file is an Initial Telnet Cache. The Telnet Server seems to be no longer supported.

Application:Telnet Server
Category:Data files
Magic:- / -

Initial Telnet Cache related extensions:

  • icc IconUtils Icon Collection
  • rtf QUANTA Residue Topology File
  • sdm Sun Download Manager Download Instruction Data
  • rdt ProModel Binary Output Time Series Data
  • creole Creole Source Code
  • rcv Eudora Temporary Download Data

.ca - OpenSSL Certificate Authority Data

The CA data files are related to OpenSSL. The CA file is an OpenSSL Certificate Authority Data. OpenSSL is a cryptography toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) network protocols and related cryptography standards required by them.

Category:Data files
Magic:- / -

OpenSSL Certificate Authority Data related extensions:

  • cerf Certificate Enrollment Request File
  • crt Certificate File
  • csr Certificate Signing Request Data
  • der Certificate File
  • dgst OpenSSL Message Digest Data
  • kdb Key Database File

.ca - DATAIR FlexPlus Data

The CA data files are related to DATAIR. The CA file is a DATAIR FlexPlus Data. DATAIR is an employee benefits software company.

Category:Data files
Magic:- / -

DATAIR FlexPlus Data related extensions:

  • cd1 DATAIR Cafeteria Document System Data
  • cd2 DATAIR Cafeteria Document System Custom Data
  • dis DATAIR Data Import Specification Layout
  • fa2 DATAIR FAS 87/132 Reporter Custom Data
  • pnd DATAIR Pension System Pending Data
  • rd1 DATAIR Retirement Plan Document System Data

.ca - CLAN Conversation Analysis Data

The CA data files are related to CLAN. The CA file is a CLAN Conversation Analysis Data. CLAN (Computerized Language ANalysis) is designed specifically to analyze data transcribed in the CHAT format.

Category:Data files
Magic:- / -

CLAN Conversation Analysis Data related extensions:

  • cdc CLAN Debug Data
  • cex CLAN Output Data
  • cha CLAN Frequency Sample
  • cut CLAN Disambiguation Rules Data
  • ulx CLAN Lexical Data

.caml - Core Animation Markup Language Data

The CAML development files are related to Apple Mac OS X. The CAML file is a Core Animation Markup Language Data. Core Animation is a graphics rendering and animation infrastructure available on both iOS and OS X that you use to animate the views and other visual elements of your app.

Application:Apple Mac OS X
Category:Development files
Magic:- / -

Core Animation Markup Language Data related extensions:

  • aet FileMaker Pro Runtime Database
  • jci PSDsoft Express JTAG Chain Information
  • sar JBoss Service Archive
  • jshtm Visual Studio JavaScript Document
  • bsf Altera Quartus II Block Symbol File
  • a51 µVision Assembler Source Code

Be careful.

It is important to understand that the .ca file extension is not limited to a particular set of applications. Other programs besides the intended ones can also use the .ca extension to create files. This includes potentially harmful programs or malware that may generate .ca files for various purposes. Be especially cautious with .ca files coming from untrusted or unknown sources.

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 an extension, you receive the following message:

Select an app to open this .ca file

To set the .ca file association in Windows 11, you can follow these steps

  1. Open the Settings app by clicking on the Start menu and selecting the gear icon.
  2. In the Settings app, click on System and then select Apps from the left-hand side menu.
  3. Scroll down and click on the Default apps option.
  4. Under the Default apps section, you will find various categories such as Email, Web browser, and Music player.
  5. Locate the category that matches the file type you want to associate, such as Photos for image files or Video player for video files.
  6. Click on the current default app listed under the category. A list of available apps will appear.
  7. Choose the app you want to set as the default for that file type. If the desired app is not listed, click on More apps to see additional options or click on Look for an app in the Microsoft Store to search for apps in the Store.
  8. After selecting the app, it will become the default choice for opening files of that type.

It's worth mentioning that you don't always need to set .ca file association. Many applications can open .ca files without requiring any specific file association to be set.

The .ca file extension is often given incorrectly

Based on searches conducted on our site in the past year, we have compiled a list of the most common misspellings. These frequent misspellings can cause confusion and hinder search accuracy. Our goal in providing this list is to help users find the right information more easily and enhance their overall search experience on our website.

These misspellings were the most common in the past year:

ac, cq, cw, cx, cz, da, fa, sa, va, xa

Is it possible that the filename extension is misspelled?

There is a possibility that the .ca filename extension is misspelled. To assist users in identifying potential errors, we provide a list of similar file extensions in our database.

Filename extensions similar to .ca:

Operating systems

At, we strive to provide a seamless user experience by ensuring compatibility with a wide range of operating systems. The following is a comprehensive list of the operating systems currently supported by

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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If you find the information on this .ca page useful, please feel free to link to this page. >> CA file