Question: Its really as basic as it gets
Please fix the punctuation.
Fixed: [It's really as basic as it gets:]

Question: The closest airport for Kiten is
Please fix the punctuation.
Fixed: [The closest airport for Kiten is:]

Question: On Friday it will be mainly cloudy but mostly dry for a while The afternoon will bring variable clouds with scattered rain showers
Please fix the punctuation.
Fixed: [On Friday it will be mainly cloudy, but mostly dry for a while. The afternoon will bring variable clouds with scattered rain showers.]

Question: If your PC opens the AAP file but its the wrong application youll need to change your Windows registry file association settings In other words Windows is associating AAP file extensions with the wrong software program
Please fix the punctuation.
Fixed:
[If your PC opens the AAP file, but it's the wrong application, you'll need to change your Windows registry file association settings. In other words, Windows is associating AAP file extensions with the wrong software program.]