: Often stands for "Video Note" or "Voice Note," common in certain dashcam brands (like VAVA or 70mai) or messaging apps.
: On Android or PC, use the Search function in your file explorer for "VN20221021" to locate the folder where it was downloaded. Download VN20221021 114814 mp4
mp4 . This filename structure usually breaks down as follows: : Often stands for "Video Note" or "Voice