This error usually means you are missing one or more parts of the archive or one of the files was corrupted during download.
If you only have the .001 file and no others are available for download, the archive is incomplete and cannot be opened. Datei herunterladen MSGM7DE.7z.001
of the archive (e.g., MSGM7DE.7z.001 through to the final part) for the extraction to work. This error usually means you are missing one
Right-click specifically on the file ending in .001 . Datei herunterladen MSGM7DE.7z.001