What is NAV file?

The file with the extension NAV is the Game Files file type. It was designed by Valve. In addition to this file, the Game Files category includes 1509 related files. Id Tech 3 Bot Navigation Format is most often found on 2 operating systems. These systems consist of Mac OS, Windows, although it may occasionally be found on another system, it will be non-functional. The Quake 3 application is recommended to open the file. It was released by id Software LLC. There are also 3 alternative programs to handle the NAV file. You can use Counter-Strike: Source, Half-Life: Counter Strike in case Quake 3 cannot be used.

How to open NAV file?

The main problem with Id Tech 3 Bot Navigation Format is that the NAV file is incorrectly associated with programs. This is manifested by the fact that NAV files open in unusual applications or do not have an assigned program. This problem can be easily remedied.

The first thing you should do is just "doubleclick" on the NAV file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install Quake 3

In this case, you should first verify that the Quake 3 application is installed on the computer. The easiest method is to use the system search engine by entering the program name Quake 3 in it. If we do not have this program, it is worth installing it, as it will help you automatically associate the file NAV with Quake 3. Below is a list of programs that support the file NAV.

Step 2. Create association of Quake 3 with NAV files

If the application is or has been freshly installed, but the NAV file still does not use the Quake 3 program, it means no association. It is most convenient to call the context menu with the right mouse button and select Properties. Information about the file and the program that the file is associated with are available here. Using the "Change" button we can select the desired program. The program should be visible in the window, otherwise it should be selected manually using the "Browse" button and the program installation directory should be indicated. However, it is important to check the "Always use the selected program ..." box, this will allow you to permanently associate the NAV file with the Quake 3 application.

Step 3. Update Quake 3 to the latest version

If, despite the association of the Quake 3 program with the Id Tech 3 Bot Navigation Format file, the file still does not open, check the program version and possibly update it to the newest version. In this case, use the id Software LLC website or update the program from the application.

If the above steps do not help, you can assume that the file itself is not correct. This could be due to the file itself, the cleanest issues are:

The affected file may be 0 KB or smaller than expected. This is most often caused by a problem while downloading the NAV file. Downloading the file again should fix the problem.
The operating system may be infected with a computer virus. A virus scan using an up-to-date antivirus program should fix the problem. Some antivirus vendors also provide free online scanners. However, it is important to scan the entire system, not only the file NAV or the program directory. As a result of the scan, sometimes it is not possible to recover NAV files, which are deleted if there is a backup of this file, then after restoring it, it must also be scanned.
This can happen especially when the program is dynamically developed and the structure of the NAV files changes over time. Help should be sought from the software developer, as they usually recommend using free file converters or installing an older version of the program.
There can be many reasons for this. Depending on the type of file, it is necessary to repair it accordingly. Some programs offer the option of recovering data from damaged NAV files. You can restore the file from a backup or use Valve help.
The program indicates that the file is encrypted or corrupted. The encrypted file NAV except for the special designation, works normally, but only on the device where it was encrypted, before transferring it to another machine, decryption is required.
Some of the system directories are excluded from modification. The problem is only writing to the file, not reading it. It is best to move NAV to a different directory.
This problem only occurs with more complex files. In this case, the NAV file is blocked by the first application to open it. Running programs (including those in the background) should be verified. Sometimes it is necessary to wait a while before referencing the NAV file again. Some anti-virus or backup software may occupy the NAV file for a certain period of time. If this does not work either, restart the device.