If the files received by WeChat on the computer still can't be opened, I think there may be three situations. The first is the file format, which is not commonly used, that is, we can't open it with the video or word processing software we usually use. They are files in a special format. The second possibility is that someone deliberately changed the file name and turned it into a special file that others could not read normally. The third possibility is that the file itself is damaged and can't be opened under normal circumstances. If the file is still important, you can only take it to the computer city to find a professional to try to recover it.