Click the "Format" and choose the "Final Cut Pto -> Apple ProPres 422 (*.mov)" files as the output format.
Step 3: Preserve and Separate audio tracks by clicking "settings"
Click "settings" to preserve and separate audio tracks from original audio tracks as you need.
Step4: Convert Canon XF300 MXF files to Apple ProRes 422 MOV for FCP X.
Click "Start Conversion" icon. UFUSoft HD Converter for Mac will convert Canon XF300 MXF to Apple ProPres 422 MOV for FCP X at high speed. So here, everything is all done, easier than you expect.