Are you asking about general stuff, or OpenLP in particular.<br><br>Either way, it depends on the applications you used, and what formats your files are. In most cases, your Word, Excel, etc files will continue to work just fine in LibreOffice. Moving the actual files should be as simple as backing them up to another hard drive or flash drive or something, installing Ubuntu, and then copying the files back.<br><br>WikiHow actually has a really good article on migrating from Windows to Ubuntu: http://www.wikihow.com/Migrate-from-Windows-to-Ubuntu<br><br>For OpenLP specifically, you'll want to backup everything in the data folder. Go to Tools, Open Data Folder, and copy everything in there to a safe place. You can also export your settings by going to File, Export, Settings, and saving the settings file in a safe place.<br><br>Once you've got Ubuntu loaded, just look in the Software Center for OpenLP, install it, and then once you've got it up and runing, import your settings and open your data folder and copy all your data back. Restart OpenLP for everything to take effect, then you should be done.<br>