Step 1: Free download FLV to AVI Converter and install it.
Step 2: Open this FLV to AVI converter suite Pro:

Step 3: Click
button to input FLV file(s), batch FLV to AVI supported, you can at the same time add as many as possible, but here I suggest add 1-10 FLV video files the same time for better stable running performance, ofcourse, this is varied by your computer configration and the FLV files size.
Step 4: under Profile selection: click download arrow, Choose: AVI Video Formats(*.avi)
.
under output Folder , Click "Change" button to select the destination folder you want the converted AVI to store. (the default folder is stored under file: c:\outputFolder\)

Step 5: Click
convert button to start convert FLV to AVI.
Then the Converting FLV to AVI process shall be looked like this

After successful converting FLV to AVI, the converted AVI files shall be stored on the folder you have previously selected.
With this powerful FLV to AVI converter, not only can convert FLV to AVI . you can also convert FLV to almost all other popular video formats. but all the process is the same, Just Free download and enjoy it.