
What is 3GP ?
3GP is the name for both a video standard designed for mobile phones and the name of the Container used to store video used in the standard. It was developed by a group of companies and standards organizations from Europe, North America, and Asia called 3GPP for 3rd Generation Partnership Project. The purpose of the project was developing a mobile video standard compatible with 3G (3rd Generation) GSM mobile phone systems.
What is AVI?
AVI - which stands for Audio Video Interleave
A Container format used by Microsoft's Video for Windows multimedia framework. Since it was developed for Windows 3.1 in 1992 it lacks some features found in newer containers like MPEG or MP4, but is still widely used by consumers and even supported by some standalone DVD players. Although still supported in Windows, and suitable for certain formats like DV, it's not a good general purpose container, and even Microsoft uses other containers for their own video formats
The following guide shows you how to convert 3GP to AVI with the 3GP to AVI Video Converter
Step 0: Download and install 3GP to AVI Video Converter

Step 1: Free download this 3GP to AVI Video Converter, install it and click Add file button to load 3GP video.
Step 2: Choose output format and Destination
Choose AVI as output format from the Profile list and click Browse to choose the place where you want to put output video
Step 3:Editing features
You can adjust output effect, capture any clips, cut black edges off your video, and more with the function buttons in the main interface.
Step 4: Click Start button to convert 3GP to AVI in a few seconds.
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