The first step is to put WeChat on the computer.
Step 2, the mobile phone WeChat opens the file transfer assistant.
Step 3, click the+sign in the lower right corner, as shown below.
Step four, click on the photo album. (Generally downloaded videos can be seen in the photo album. If some mobile phones can't be found, click the folder in the lower right corner to go to the path where you saved the video. )
Step 5, find the video and click Send to the computer.