Download and install WinRAR or an open-source alternative like 7-Zip.
If your computer tries to open the file as a text document, you may need to reset your default apps in the Windows Control Panel to associate .rar files with WinRAR. Download Compositions base plantes part02 rar
Right-click only on the first part ( part01.rar ) and select "Extract Here." The software will automatically pull data from part02.rar and subsequent parts to reconstruct the original files. Download and install WinRAR or an open-source alternative