libreoffice will not open on my iMac

just downloaded libreoffice yesterday. When opening, pop-up shows “verifying libreoffice”, this runs for several minutes but never gets above about 60% then shuts down. Any ideas?

Have you tried redownloading it? Maybe the file got corrupted. Does the file size match the one on the site? IF there’s a significant difference it might be an indication that the file was not properly downloaded.

You could give some more information.
Where did you download?
Which LO version did you download?
How did you start LibreOffice?

You can be smart here, too:

System Requirements

Download side

Installation Instructions

Or you can see if you can find something in the FAQs.