The file extension indicates the second part of a split 7-Zip archive . To access the contents, you cannot open this file by itself; you must have all numbered parts (e.g., .001, .002, .003) present in the same folder. How to Extract the File

: Use a tool like 7-Zip or WinZip to select "Extract Here" or "Extract files". The software will automatically bridge to the .002 file and any subsequent parts to reconstruct the original data. Troubleshooting

: If you only have .002 but not .001 , the archive cannot be opened because the master header is usually stored in the first file.