How to open iWork 09 files with LibreOffice?

I read that with Libetonyek LibreOffice can now open iWork 09 files. I tried opening some .numbers and .pages files but in Windows 10 they just appear as folders, so I couldn’t open them with LibreOffice Calc or Writer. How do I do that?

LibreOffice running on Mac OS 10.13.6 (High Sierra) opens iWork '09 files. There are some formatting issues, but all the text is there, formatted similarly to the original. Once saved on a mac in .odt format I’m thinking the .odt files will open on a PC running Windows. Not an elegant solution that gets you there in one step, but at least you know this is a possibility.