If a try to open LibreOffice or any document (spreadsheets, presentations, written or .doc files), it will atempt to start the aplication and just exit it with no error before starting.
From a terminal(Ctrl-Alt-t):
Create a folder called
Then, copy files from
Finally, change owner group and permissions, then run libreoffice.
Open up a terminal and run the following command:
That way you will get output from the start in your terminal and most likely an error message that gives at least a hint. If you don't see what the problem is right away post the output here.
For other terminal options try "libreoffice --help".