.db

File Type 1 Database File IconDatabase File
File Format Standard
Usage Open manually
Rank ★ ★ ★  Common
Description

Generic database file that stores information in a structured format; might be created by a number of different database programs; may also be imported by multiple database programs.

Open With
Windows

IconMicrosoft Access

IconLibreOffice

IconSynopsys Design Compiler Graphical

macOS

IconSQLite

IconLibreOffice

Unix

IconSQLite

IconLibreOffice

Updated 2007
File Type 2 Generic IconX-Ray Engine Database
File Format Standard (developed by GSC Game World)
Usage Open manually; may be referenced by an application
Rank ★ ☆ ☆  Uncommon
Description

An X-Ray Engine database stores objects used by games developed with the X-Ray Engine. It is similar to a .GCF file, which is used by Valve games.

The X-ray Engine is a DirectX Shader Model 3 graphics engine that supports up to a million polygons at once. It is used by the S.T.A.L.K.E.R. series of games developed by GSC Game World.

Open With
Windows

IconS.T.A.L.K.E.R. Data Unpacker

Updated May 25, 2009
File Type 3 Generic IconWindows Thumbnail Cache
File Format Standard (developed by Microsoft)
Usage Referenced by an application; not meant to be opened manually
Rank ★ ★ ★  Common
Description

Files named Thumbs.db are image cache files created by Windows. They store small versions of the images contained in the folder.

Thumbs.db files help speed up image browsing within a folder, since the image thumbnails don't have to be recreated each time the folder is opened. These files are hidden by default, but may be seen if the "Show invisible files" option is checked in the "View options" window.

Open With
Windows

IconMicrosoft Windows

Updated May 6, 2009
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