can't update, when I try to run the update file I get "

This installation package could not be opened. Check with vendor. Can you help??

Also having the same problem…try another program called Apache Open Office and this one will do the same stuff and can be downloaded for free also.
For the program we are discussing- Libre Open Office there is a corrupt file in the package and so I chose not to ignore my virus program warning and aborted the download.
The unsuccessful download process in which we saw an error message which read… corrupt file, it actually uninstalled my Libre Open Office program which I discovered later that it was missing. Then I found this Apache Open Office Program.
Here is Apache Open Office: