CSPL File Extension

CSPL file icon
Firefox Data Format

What is CSPL file?

CSPL is a file extension commonly associated with Firefox Data Format files. CSPL file format is compatible with software that can be installed on Linux, Mac OS, Windows system platform. Files with CSPL extension are categorized as Misc Files files. The Misc Files subset comprises 4488 various file formats. Users are advised to use Firefox software for managing CSPL files, although 2 other programs can also handle this type of file. On the official website of Mozilla Corporation developer not only will you find detailed information about theFirefox software, but also about CSPL and other supported file formats.

Programs which support CSPL file extension

The list that follows enumerates programs compatible with CSPL files, divided into 3 categories based on operating system on which they are available. Files with CSPL extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Programs that support CSPL file

Windows Windows
Linux Linux

Updated: 02/26/2020

How to open file with CSPL extension?

Being unable to open files with CSPL extension can be have various origins. What is important, all common issues related to files with CSPL extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Install Firefox software

The most common reason for such problems is the lack of proper applications that supports CSPL files installed on the system. The solution is straightforward, just download and install Firefox. The full list of programs grouped by operating systems can be found above. If you want to download Firefox installer in the most secured manner, we suggest you visit Mozilla Corporation website and download from their official repositories.

Step 2. Verify the you have the latest version of Firefox

If you already have Firefox installed on your systems and CSPL files are still not opened properly, check if you have the latest version of the software. Software developers may implement support for more modern file formats in updated versions of their products. The reason that Firefox cannot handle files with CSPL may be that the software is outdated. The most recent version of Firefox is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Set the default application to open CSPL files to Firefox

If you have the latest version of Firefox installed and the problem persists, select it as the default program to be used to manage CSPL on your device. The method is quite simple and varies little across operating systems.

The procedure to change the default program in Windows

  • Right-click the CSPL file and choose Open with option
  • Click Choose another app and then select More apps option
  • To finalize the process, select Look for another app on this PC entry and using the file explorer select the Firefox installation folder. Confirm by checking Always use this app to open CSPL files box and clicking OK button.

The procedure to change the default program in Mac OS

  • By clicking right mouse button on the selected CSPL file open the file menu and choose Information
  • Find the Open with option – click the title if its hidden
  • Select the appropriate software and save your settings by clicking Change all
  • Finally, a This change will be applied to all files with CSPL extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Ensure that the CSPL file is complete and free of errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper CSPL file. Problems with opening the file may arise due to various reasons.

1. Verify that the CSPL in question is not infected with a computer virus

Should it happed that the CSPL is infected with a virus, this may be that cause that prevents you from accessing it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. If the scanner detected that the CSPL file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Check whether the file is corrupted or damaged

If you obtained the problematic CSPL file from a third party, ask them to supply you with another copy. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. It could happen the the download process of file with CSPL extension was interrupted and the file data is defective. Download the file again from the same source.

3. Verify whether your account has administrative rights

Sometimes in order to access files user need to have administrative privileges. Switch to an account that has required privileges and try opening the Firefox Data Format file again.

4. Make sure that the system has sufficient resources to run Firefox

If the systems has insufficient resources to open CSPL files, try closing all currently running applications and try again.

5. Verify that your operating system and drivers are up to date

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with Firefox Data Format files. It may be the case that the CSPL files work properly with updated software that addresses some system bugs.

Do you want to help?

If you have additional information about the CSPL file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on CSPL file.

Top File Extensions
Show more
File Extension of the day
kmz icon


Google Earth Placemark Format

Files with the KMZ extension are used by a popular program – Google Earth, and they contain locations of maps shared within this software. ...