libre download to iMac won't open?

Hi… I just found out about LIbre because my .cwk documents won’t open on my Mac. I attempted to download Libre (Mac Version 4.4.4). The icon goes to my download file but it’s grey and has an “X” (cannot be opened).

Any guidance would be much appreciated.

Thanks

Download what from where?

what is the version of OSX you are running on that mac ?

(very likely you were running mac OSX < 10.8, and you disregarded the pre-req for LibreOffice 4.4+ which is 10.8+ and intel 64bits)