These reductions are not achieved by ripping content; they are the result of XTool’s intelligent preprocessing. Repacks that include (e.g., all voiceovers, all bonus videos) are MD5‑perfect , meaning every file is byte‑for‑byte identical to the original after installation. Only when selective download is used (skipping unneeded voiceovers, etc.) does the repack differ from the original.
Rather than compressing files directly into a smaller archive like 7-Zip or WinRAR, XTool operates as a . It scans game archives (such as .rpf , .pak , or .bin files) to locate data streams that have already been compressed by the game engine using standard formats like Zlib, Deflate, Oodle, or LZ4. XTool temporarily inflates (decompresses) these streams back into their raw, predictable states. When standard compression tools are subsequently applied to this raw data, they can achieve a radically higher compression ratio. How XTool Works: The Precompression Pipeline xtool library by razor12911 work
Unlike standard 7-Zip LZMA2, xTool introduces with context-aware dictionaries . A standard archiver sees files as separate. xTool can see that texture_1.dds and texture_2.dds are similar and store them in a way that reuses compression dictionaries across files. These reductions are not achieved by ripping content;
The extraction setup decompresses the xTool-preprocessed file back into raw data. Rather than compressing files directly into a smaller
Find the from the official GitHub repository.