P8.7z
The .7z extension represents an open-source archive format utilizing LZMA/LZMA2 algorithms for high-ratio data compression and AES-256 encryption. Tools like 7-Zip, which recently optimized performance for large tasks, are required to extract these files. For more details on the 7z format, visit 7-zip.org . Does 7z compress better than zip? - Microsoft Community Hub
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