W3g extensions stand for Warcraft 3 Replay file. You can try to open w3g files with Warcraft 3 software.

Warcraft 3 is a strategy game and w3g files are used in Warcraft. There are informations about scenarios, meeting details and movements in these files. The files which are found in WarCraft 3 in installation folder can be updated when you run this game. 

You can get detailed informations from its official web page of Warcraft. 

What to use w3g

Warcraft 3

which page related to w3g file


w3g Related Searches

You can check related links about w3g fileextension.