You need a specialized tool like 7-Zip or WinRAR .
Right-click only on the file ending in .001 and select "Extract Here" or "Extract to folder..." . LilyoftheValley1.7z.001
To get the actual content inside, you cannot just open the .001 file alone. You need to "reassemble" the archive. You need a specialized tool like 7-Zip or WinRAR
Ensure you have every numbered part (001, 002, 003, etc.) downloaded and saved in the same folder on your computer. LilyoftheValley1.7z.001