Things You'll Need
Download Any Video Converter, a free conversion program, to your desktop (see Additional Resources). To install, double-click on the icon and follow the on-screen prompts. Open the video file conversion utility program.
Click "File" and then click "Add File(s)." Navigate to the flash file (.flv or .swf) to convert. Select the file to add to the video converter user interface.
Select the file type of the output file. In this case, select MP4.
Select the output folder where the new file will be saved once converted.
Click "Convert" to convert and save the new MP4 file.
Open Windows Explorer and navigate to the output folder. Verify the MP4 file by playing in a video player application.