Connect your iPhone to your computer via a lightning/USB-C cable. Open File Explorer , go to "This PC" > [Your iPhone Name] > "Internal Storage" > "DCIM." You will have to look through the folders (like 100APPLE) to find the specific file.
If "IMG_1692.MOV" is a video you took and you want to download it to your PC or Mac:
If you tell me where you saw the link or what device you are using, I can give you much more specific steps.