EU4 filename suffix is mostly used for Europa Universalis IV Saved Game Format files. Files with EU4 extension may be used by programs distributed for Windows platform. EU4 file format, along with 1509 other file formats, belongs to the Game Files category. The most popular software that supports EU4 files is Europa Universalis IV. Europa Universalis IV software was developed by Paradox Interactive, and on its official website you may find more information about EU4 files or the Europa Universalis IV software program.
Below is a table that list programs that support EU4 files. EU4 files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.
Updated: 02/23/2021
There can be multiple causes why you have problems with opening EU4 files on given system. What is important, all common issues related to files with EU4 extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The list below will guide you through the process of addressing the encountered problem.
The most common reason for such problems is the lack of proper applications that supports EU4 files installed on the system. The solution to this problem is very simple. Download Europa Universalis IV and install it on your device. Above you will find a complete listing of programs that support EU4 files, classified according to system platforms for which they are available. If you want to download Europa Universalis IV installer in the most secured manner, we suggest you visit Paradox Interactive website and download from their official repositories.
If you already have Europa Universalis IV installed on your systems and EU4 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 The reason that Europa Universalis IV cannot handle files with EU4 may be that the software is outdated. The latest version of Europa Universalis IV should support all file formats that where compatible with older versions of the software.
After installing Europa Universalis IV (the most recent version) make sure that it is set as the default application to open EU4 files. The method is quite simple and varies little across operating systems.
Change the default application in Windows
Change the default application in Mac OS
If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the EU4 file in question. It is probable that the file is corrupted and thus cannot be accessed.
Should it happed that the EU4 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. EU4 file is infected with malware? Follow the steps suggested by your antivirus software.
If the EU4 file was sent to you by someone else, ask this person to resend the file to you. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. When downloading the file with EU4 extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.
Sometimes in order to access files user need to have administrative privileges. Log in using an administrative account and see If this solves the problem.
If the systems has insufficient resources to open EU4 files, try closing all currently running applications and try again.
Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with Europa Universalis IV Saved Game Format files. It may be the case that the EU4 files work properly with updated software that addresses some system bugs.
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