Run 7z x R0487.7z to extract the full contents to your current directory.
It typically utilizes the LZMA or LZMA2 algorithms, which provide significantly better compression ratios than standard ZIP files. R0487.7z
To view the "detailed text" or other files inside , you will need to extract it: Windows: Use the official 7-Zip utility or WinZip . Run 7z x R0487