Your currently selected language is English.
Your currently selected location is the United States and your order will be billed in USD. The delivery methods, conditions of sale and delivery points will be updated when you change the country.
: Your computer might be set to "Hide extensions for known file types." If the original file was already an MP4, it would look like 9126354 . Adding .mp4 manually results in the double extension.
Is there a way to show Director or Writer for mp4 in windows explorer?
: You can simply right-click the file and rename it to 9126354.mp4 . This won't change the internal data but makes the filename cleaner.
: Despite the odd name, the file is still a standard digital multimedia container used for storing video, audio, and subtitles. How to Fix or Use the File