.nav

File Type 1 Generic IconMSN Application Extension File
File Format Proprietary (Microsoft)
Usage Referenced by an application; not meant to be opened manually
Rank ★ ☆ ☆  Uncommon
Description

Adds additional functionality and file support to MSN application programs

Open With
Windows

IconUsed by MSN programs

Updated 2007
File Type 2 Generic IconId Tech 3 Bot Navigation File
File Format Proprietary (Valve)
Usage Open manually; may be referenced by an application
Rank ★ ☆ ☆  Uncommon
Description

Navigation mesh that represents walkable areas of a Counter-Strike: Source map (.BSP file); used by bots (computer-controlled characters), which allows them to know how to move around the map.

NAV files are automatically generated by Counter-Strike the first time a user attempts to play a custom map with bots. This may take several minutes or longer for large maps. The NAV generation process may also be started manually by typing nav_generate in the Counter-Strike console.

Navigation meshes can be edited manually by typing nav_generate 1 in the console with "sv_cheats" enabled.

Open With
Windows

IconValve Counter-Strike Source

Iconid Software Quake 3

macOS

IconValve Counter-Strike Source

Iconid Software Quake 3

Updated 2007
space