LanguageJA
Japanese language translation
File type: Text file
A ja file extension is related to the Japanese language translation files used by many software programs.
Found 3 different file type records with the same ja filename suffix.
What is ja file?
File type category:
Text file
Date updated: December 31, 2024
The ja file extension is often used by various programs for localization files with Japanese language translations.
The *.ja files are often in just simple text or XML format and contain localized text.
How to open ja file?
Translation files are mostly in simple text format. Openable with any common text editor like Notepad++, Sublime Text.
How to convert ja file?
Probably cannot be converted to other formats.
Associated software actions with the ja file
Software applications that can open ja files:
Sublime Text (Microsoft Windows)
NotePad++ text editor (Microsoft Windows)
PSPad (Microsoft Windows)
Sublime Text for Mac (Apple macOS / Mac OS X)
Sublime Text for Linux (Linux/Unix)
Software applications that can edit ja files:
Sublime Text (Microsoft Windows)
NotePad++ text editor (Microsoft Windows)
PSPad (Microsoft Windows)
Sublime Text for Mac (Apple macOS / Mac OS X)
Sublime Text for Linux (Linux/Unix)
Software capable of saving ja files:
Sublime Text (Microsoft Windows)
NotePad++ text editor (Microsoft Windows)
PSPad (Microsoft Windows)
Sublime Text for Mac (Apple macOS / Mac OS X)
Sublime Text for Linux (Linux/Unix)
Mozilla archive
File type category:
Archive and compressed file
Date updated: June 27, 2025
The ja file extension is associated with archive file format used by some web browsers based on popular Firefox browser from Mozilla.
The ja file stores various internal parts of these web browsers. JA format is used to optimize web browser speed.
By default, the file is called omni.ja.
How to open ja file?
The ja format is similar to ZIP, you can rename *.ja file to *.zip and open it with some compression tools.
How to convert ja file?
Probably cannot be converted to other formats.
Suggested software to open ja file:
Associated software actions with the ja file
Software applications that handle other tasks involving ja files:
Firefox (Microsoft Windows)
SeaMonkey (Microsoft Windows)
Firefox for Mac (Apple macOS / Mac OS X)
Seamonkey for Mac (Apple macOS / Mac OS X)
Firefox for Linux (Linux/Unix)
Seamonkey for Linux (Linux/Unix)
Tor Browser (Multiplatform)
Trainz Railroad Simulator game data
File type category:
Game file
Date updated: July 31, 2018
The ja file extension is associated with the Trainz Railroad Simulator, a video game for Microsoft Windows operating system, developed by Auran Games.
The ja file stores various game data.
How to open ja file?
You cannot open this file type manually, it is accessed by the game automatically.
How to convert ja file?
These games files cannot be converted to anything else. However, sometimes modding.
Suggested software to open ja file:
Associated software actions with the ja file
Software applications that handle other tasks involving ja files:
Trainz Railroad Simulator (Microsoft Windows)