>> SESSION file

SESSION file format description

Many people share .session files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .session file can be edited, converted or printed with. On this page, we try to provide assistance for handling .session files.

2 filename extension(s) found in our database.

.session - Catia V4 Session

The SESSION other files are related to Catia. The SESSION file is a Catia V4 Session. CATIA (Computer Aided Three Dimensional Interactive Application) is a multi-platform CAD/CAM/CAE commercial software suite developed by Dassault Systemes and marketed world-wide by IBM.

Other files
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Catia V4 Session related extensions:
Catia 3DMAP File
Catia 3D Geometry Data
Catia V4 Sequential Data
Catia Catalog
CATIA Analysis Data
CATIA Catalog Data

.session - Mozilla Firefox Session Data

The SESSION data files are related to Mozilla Firefox. The SESSION file is a Mozilla Firefox Session Data. Mozilla Firefox is a free and open-source web browser developed by the Mozilla Corporation.

Mozilla Firefox
Data files
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Mozilla Firefox Session Data related extensions:
MADRIX Patch Data
OnScale Review Input Data
eSignal Market Depth Data
Download Accelerator Plus Partial Data
SmartMusic Performance Data
QuarkXPress Autosave Data

Naturally, other applications may also use the .session file extension. Even harmful programs can create .session files. Be especially cautious with .session files coming from an unknown source!

Can't open a .session 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 a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

Operating systems currently supports the following operating systems:

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

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If you have useful information about the .session file format, then write to us!