Did you find or received CUSTOM file and your computer failed to open it? Below we will explain what is CUSTOM file extension and how you can open it.

What is a CUSTOM file ext?

CUSTOM is a file extension associated with Personal Paint Custom Language User Interface files .

How to open a CUSTOM file?

In most cases your computer should know what software program should be used to open different file types and extensions like CUSTOM. When you double click on the CUSTOM file format, it should open with appropriate software program. If you downloaded or received CUSTOM files for the first time and your system failed to open it then try free file viewers available on the internet after doing enough research not to fall prey to malware.

How to fix errors with CUSTOM files

Scan the file
Before trying to open CUSTOM files on your Windows make sure that it is safe to do so by running through antivirus scanner.
Unable to open CUSTOM files with the associated software program or see an error than try updating the associated software
Do not
If none of the applications in your Windows were able to open CUSTOM file do not change file extension because by changing file extension you are corrupting the file. In case you already changed the extension you can revert it back to CUSTOM by renaming the file. Incorrect associations are the cause of many CUSTOM file errors.

Finally, if Windows is unable to open file extension CUSTOM you may have registry related errors or may not have the appropriate program installed. We strongly recommend that you run a registry scan.

You are currently viewing the detail page for CUSTOM file ext. This page contains a detailed description of the CUSTOM file type, software tools to help resolve file association errors in the Windows registry together with relevant system utility applications and other related information.