WinRAR has a built-in file repair function, you can try to use WinRAR to repair corrupted/damaged RAR/ZIP archive file. Check the steps below.
Step 1. Open WinRAR on your computer. In the address bar of WinRAR, you can find the location of the corrupted RAR/ZIP file.
Step 2. Next you can select the corrupted RAR/ZIP file, and click Repair button at the toolbar.
Tip: You can also locate the corrupted RAR/ZIP file and right-click it to choose Open with WinRAR. Then you can click Tools at the toolbar and choose Repair archive.
Step 3. In the pop-up window, you can click Browse to select a destination path or folder to store the repaired RAR/ZIP file, and click OK to start repairing the corrupted RAR/ZIP file.
Step 4. After the repairing process is finished, you can close the file repair window, and open the destination folder to check the repaired RAR/ZIP archive file. The name of the repaired file may be rebuilt.filename.rar or rebuilt.filename.zip.