>> SESS file

SESS file format description

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

1 filename extension(s) found in our database.

.sess - PHP Session Data

The SESS data files are related to PHP Hypertext Preprocessor. SESS file is a PHP Session Data. PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.

PHP Hypertext Preprocessor
Data files
- / -
PHP Session Data related extensions:
ADInstruments LabChart Simple Data
Splitty Master Split Data
MATLAB File Installation Key
Kallisto Transcript to Gene Data
MOPAC Cartesian Data
MOPAC Internal Data

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

Can't open a .sess 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.

The .sess file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

sesx, ses, ess, sss, swss

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Adobe Audition Session
Adobe Audition v2 Session
SPECCTRA Session File
EasySpreadsheet Document
Stardock WindowsBlinds Substyles
ClarisWorks 3 Spreadsheet

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 .sess file format, then write to us!

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