additional types of files may also be using the h261 file extension. if you are aware of any other file formats using the h261 file extension, please contact us so that we can update our information accordingly.

Please write the text above using proper case.
Additional types of files may also be using the H261 file extension. If you are aware of any other file formats using the H261 file extension, please contact us so that we can update our information accordingly.