This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read more
Filename extension
Facebook Twitter Google+ E-mail
Navigation: Home > SU3 file

Informations about the SU3 filename extension and the file formats associated with it

We collected the information you should know about the .su3 filename on this page. If you were sent a(n) .su3 file in an e-mail, but you don’t know what to do with it, then you can find help here. We strive to suggest free, open-source applications that are available to everyone for the file formats.

1 filename extension(s) are in our database

.su3 - I2P Software Update File

The SU3 file is a Data file, which is connected to the I2P Software Update File according to our registry. With the adequate settings, the I2P Software Update File (.su3) files can be opened or converted with the help of I2P.

Format description:
SU3 format description not yet available
Magic string:
- / -
su2, sud
Related links:
Related extensions:
Windows XP Cache Data
Lidar Data Exchange Format File
ChessDB Name Data
Autodesk AutoCAD ecscad Component Backup
Adobe SpeedGrade Color Mask
MetadataTouch Template

Important! Programs other than the ones listed above may also use the .su3 file extension. Even harmful programs can create files with the .su3 extension to store data in them. Always be careful with .su3 files coming from unknown sources. Don’t open executable files that arrived in mails, even if you know the sender.

The .su3 file can’t be opened on your computer?

If the program necessary for opening the .su3 file is installed properly on your computer, then the quickest and simplest way to open the .su3 file is to double-click on the file’s name. If that doesn’t work, then the right software probably isn’t installed on your computer.

While opening the .su3 file, you may receive an error message from the associated application, this can be caused by the following:

Incorrectly given .su3 extension

The .su3 filename extension can be given incorrectly sometimes. The cause of the error could be a mistake or a simple typo. We found the following incorrectly given filename extensions that are the most frequent in the case of .su3 files.

cu3, sy3, sue, si3, eu3, sur, su, sh3

Maybe you’re not even looking for the .su3 file extension?

It’s possible the the file’s extension was given incorrectly. Below, we list some filename extensions that are similar to the .su3 extension. It’s possible that the one you’re looking for is among them.

Europa Universalis III Saved Game
Freescale S-record File
Harvard Graphics 3.0 Show Presentation
ChessDB Index Data
SUwin Project
Topocad Survey Data

Associated applications

The Windows operating system stores information about the applications associated to the file extensions in the registry database. The associations can be queried or modified in the Command Prompt window with the "assoc" command.

Help us

We regularly check all the links on our pages, but it’s possible that a link doesn’t work or it doesn’t point to the correct page. If you found an error on this page, or if you have information that should be here, then don’t hesitate. Write to us and share your useful information.

We gladly accept application suggestions, but our primary goal is to suggest reliable, open-source applications that can be freely distributed to the users.

Protect the trees

If you find the information on our site to be useful, then save our page’s link or add it to your favourites. You can find the up-to-date information here later as well. In the interest of protecting the trees, please don’t print the page’s content onto paper.