Counter-Strike Source CBot navigation mesh
File type: Game file
Files with the .nav file extension contain navigation meshes used by CBot in Counter-Strike Source.
The game uses these meshes to define areas and routes that computer-controlled players can navigate.
Found 3 different file type records with the same nav filename suffix.
File type category:
Game file
Date updated: October 12, 2026
The .nav file is associated with Half-Life: Counter-Strike for Microsoft Windows. It stores a navigation mesh for a game map, including connected areas that CBot can use when planning movement.
The file works with the corresponding map and is normally loaded by the game rather than opened as a standalone document. Counter-Strike Source can generate or update navigation data for supported maps through its in-game navigation commands.
This is a game-specific Source engine file and is not intended as a general-purpose 3D mesh format. NAV files are also used by some 3D games based on the id Tech 3 engine.
Counter-Strike Source on Microsoft Windows opens and uses this file automatically when it is placed with the corresponding map in the game's map files. It is normally not opened directly by a separate desktop application.
Players and map creators can use the game's navigation commands to inspect or edit navigation areas where those commands are available.
There is no standard conversion from a Counter-Strike Source .nav file to a general-purpose 3D or navigation format. The file is specific to the game's CBot navigation system.
For a compatible map, the practical alternative is to generate or rebuild its navigation mesh using Counter-Strike Source's in-game navigation commands.
Software applications that handle other tasks involving nav files:
Microsoft Windows
File type category:
Various data file
Date updated: October 12, 2026
Record marked as obsolete and not updated for a long time.
CART is software for classification and regression trees developed by Salford Systems. The nav file extension identifies a CART navigator data file.
The file stores navigator data for CART. This format is obsolete.
Use CART to open and work with a .nav file.
File type category:
Various data file
Date updated: July 14, 2019
The nav file extension is associated with the Navigator, a software for Microsoft Windows operating system, which is used to celestial navigation calculations, developed by Tecepe.
The nav file contains desktop data.
Probably not meant to be accessed by the user.
Probably cannot be converted to anything else.
Software applications that handle other tasks involving nav files:
Microsoft Windows
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