Try opening the archive using WinRAR, which sometimes handles corrupted headers better.
Right-click AJArchive.7z > Select 7-Zip > Select "Extract Here" (to keep files in the same location) or "Extract to [Folder Name]" . AJArchive.7z
Double-click the file to open it in the 7-Zip File Manager, then drag and drop the contents to a new folder. 2. Handling Corrupted Files Try opening the archive using WinRAR, which sometimes