I have a number of documents open in Libre Office Writer, but I am unable to edit or close any of them. How do I close down and start again or unfreeze them?
To terminate the processes
Windows > Taskmanager (CTRL+ALT+DEL)
Linux > Terminal > pkill soffice
Hope that helps.
Also under Linux,
Esc turn your cursor into skull-and-bones. Click on the application window to kill.