Star Trek Generations autosave game file
File type: Game file
A .da9 file is an autosave game file created by Star Trek Generations for Microsoft Windows.
The game uses the file to preserve game progress for later loading.
File type category:
Game file
Date updated: November 4, 2026
Star Trek Generations was developed by MicroProse. It is a first-person shooter with adventure and strategy elements, based on the film of the same name.
The .da9 file contains autosaved game data for Star Trek Generations. It belongs to the game's own save-file system and is intended to be used by the Windows version of the game, not as a general-purpose data format.
The format is a legacy game format and is not generally used outside Star Trek Generations.
Open a .da9 file with Star Trek Generations on Microsoft Windows. The game reads the file as part of its autosave system.
It is not intended to be opened directly in a text editor or another general-purpose application. Keep it with the game's other save data so the game can find and load it.
A .da9 autosave file cannot be meaningfully converted to another standard format. Its data is specific to Star Trek Generations.
To use the saved progress, load the file in Star Trek Generations rather than attempting to export or convert it.
Software apps that backup da9 files:
Microsoft Windows