Sony Vegas is a popular and powerful video editing program. Files saved with a .veg extension are Sony Vegas project files. They are not completed video files that can be played like a .avi file. To convert a .veg video file to a .avi format file, you will need to render the .veg project file into a completed video. Sony Vegas offers many choices for output format, one of which is .avi.
Converting the .veg file into an .avi video
Open Sony Vegas, and load the .veg file into the program.
Open the File menu, and select "Render As".
Select the destination folder where you want the completed video to be saved.
Enter the desired file name in the "Save As" field.
Select "AVI" from the "Save as Type" field.
Click "Save" to begin rendering the video.
AVI files are large and may take a long time to render.