While is not a standard system file, the .7z extension identifies it as a compressed archive created with 7-Zip . The specific filename "wxy" is often associated with custom game mods, particularly for League of Legends via the legacy Wooxy skin installer .
: Unlike ZIP, .7z often treats multiple files as a single continuous block, significantly improving the compression ratio for similar files (e.g., several text documents or game textures). wxy.7z
: A map of internal folders and filenames, supporting Unicode for special characters. 3. Usage Contexts for "wxy" Files While is not a standard system file, the
: Most commonly LZMA or LZMA2 , which provide 30–70% better compression than standard ZIP. wxy.7z