Grand Theft Auto IV NavMesh data
File type: Game file
A wnv file contains NavMesh data used by Grand Theft Auto IV.
The game uses this navigation data to define traversable areas and support movement and pathfinding.
File type category:
Game file
Date updated: October 21, 2026
The wnv file extension is associated with Grand Theft Auto IV, an action-adventure game developed by Rockstar Games. Grand Theft Auto IV was released for Microsoft Windows and video game consoles. The format is used for navigation-mesh data rather than for visible 3D models.
A wnv file describes navigation information for areas of the game world. Grand Theft Auto IV uses this information during gameplay to help determine where characters and other entities can move.
WNV files are game resources used by the Microsoft Windows version of Grand Theft Auto IV and are not intended as general-purpose, interchangeable 3D files. They are specific to the game's data and remain relevant when working with its installation files or modifications.
On Microsoft Windows, use OpenIV to locate and inspect wnv files from a Grand Theft Auto IV installation or its game archives.
The game reads these files automatically. Opening a WNV file outside the game generally requires a tool that understands Grand Theft Auto IV's resource formats.
A wnv file usually has no practical conversion to a standard format. It is a game-specific navigation resource, not a general-purpose 3D model or document.
OpenIV can be used to extract or replace game resources when working with a modification, but this does not convert the NavMesh data into another standard format.
Software applications that can open wnv files:
Microsoft Windows
Programs for viewing wnv files:
Microsoft Windows
Software applications that handle other tasks involving wnv files:
Microsoft Windows
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