Xnewvid (10).mp4 -

: xnewvid is often a default or placeholder name used by certain mobile apps or camera software before a user gives the project a final title. Video Inside Text Effect

: If this is a final export, rename it to something descriptive (e.g., Summer_Vacation_Final.mp4 ) to avoid losing it among other "xnewvid" files. xnewvid (10).mp4

: The (10) usually indicates that this is the 11th version of a file or a copy made because a file with the same name already existed in that folder. : xnewvid is often a default or placeholder

: If the file won't open, try playing it in a versatile player like VLC Media Player which supports almost all MP4 codecs. : If the file won't open, try playing

: Place your text on a track above your video and apply the Track Matte Key effect to the video layer, selecting the text track as the matte source.

If you are looking for "helpful text" in the context of video effects (like putting a video inside text), you can achieve this using the or Track Matte features in most editing software: