Windows 8 and 64 bit - Cannot open ODG after saving

Hi,

this morning i have installed Libreoffice 4.0 (Italian) for doing a draw.
When my draw was ready I have saved in my Documents and closed it.
In afternoon, I try to open it but Libreoffice Draw don’t open it.

Why?

Thanks

Is there any chance that you could attach your file here so that we could take a look?