In short: Why Split Archives?
: This is likely the filename or a prefix chosen by the creator. 00278.7z.002
This article breaks down exactly what 00278.7z.002 means, why files are split this way, and how to successfully extract the data within. What is a .7z.002 File? In short: Why Split Archives
Similar to 7-Zip, WinRAR can open split 7z archives. Troubleshooting: What to Do If It Fails What is a
Ensure you have 00278.7z.001 , 00278.7z.002 , and any subsequent files in the same directory.
If one part was not downloaded completely, the extraction will fail. Re-downloading the specific broken part usually fixes this. Conclusion
To extract the content, you need all the parts ( .001 , .002 , .003 , etc.) in the same folder. Step 1: Collect All Parts