- For All Files
To set LibreOffice to be the default suite for opening all files (Note that you can still use the above methods to open individual or small groups of files in any other relevant app/program/suite/modue). There are various approaches, some of which don't always work well in Windows. Windows tries to keep things simple by hiding options and reducing the amount of information available. So try the easiest methods first and if they don't work move on to the next method.