What file type can my video preview for my resource be? June 02, 2020 15:25 Updated TpT supports the following video file types: .mov, .m4a, .m4v, .mp4, .mpeg, .mpg, .mv4, .avi, .swf, .flv. Related articles How long can my video preview for my resource be? Where should I start if I want to make video previews for my resources? How is a video preview different from a regular thumbnail or preview? What kind of video should I not upload? Do I have to create a video preview for my resource?