How to recover invalid qq files?

The method comprises the following steps:

1. First, open the computer, open QQ in the computer and enter the account number and password to log in.

2. Find the icon in the lower menu of QQ in the interface and click "Folder".

3. Select the time to send the file. Try not to select all the files here, otherwise all the files sent around this time will be displayed, and the running speed will be very slow.

Select the file you want, and then click the icon on the right.

5. Select copy and paste to the location where you want to paste to restore the invalid QQ file.