Add punctuation: If your PC opens the C4D file but its the wrong application youll need to change your Windows registry file association settings In other words Windows is associating C4D file extensions with the wrong software program
A: If your PC opens the C4D file, but it's the wrong application, you'll need to change your Windows registry file association settings. In other words, Windows is associating C4D file extensions with the wrong software program.

Add punctuation: Armed with only a Putter and a Wedge your task is to navigate your way round all 18 holes completing the course in as few shots as possible easier said than done
A: Armed with only a Putter and a Wedge your task is to navigate your way round all 18 holes completing the course in as few shots as possible... easier said than done!

Add punctuation: The AQUA 2012 Conference will take place in the Czech capital Prague from the 1st to the 5th September 2012 and it will be a combined scientific conference and tradeshow
A:
The AQUA 2012 Conference will take place in the Czech capital Prague from the 1st to the 5th September 2012 and it will be a combined scientific conference and tradeshow.