Keynote files are not able to be converted into ProPresenter, however you can add them to a playlist and trigger them to open in Keynote directly. To do this, simply drag the Keynote presentation from Finder into your Playlist. Once the file is in your playlist, select the presentation and click the play button in the slide view area. Keynote will launch and take over the output screen. If you don't see the Keynote presentation on your output screen, return to ProPresenter, open Preferences and go to the Display tab. Uncheck the first box that says Display at Top Most Window Layer. This will allow Keynote to be presented above the ProPresenter output.