QUESTION: Fix punctuation: If your PC opens the FA1 file but its the wrong application youll need to change your Windows registry file association settings In other words Windows is associating FA1 file extensions with the wrong software program
ANS: If your PC opens the FA1 file, but it's the wrong application, you'll need to change your Windows registry file association settings. In other words, Windows is associating FA1 file extensions with the wrong software program.

QUESTION: Fix punctuation: A manufacturer of dmx512 highpower led wall washer lww2 at zhongshan karnar lighting electron factory
ANS: A manufacturer of dmx512 high-power led wall washer lww-2 at zhongshan karnar lighting & electron factory.

QUESTION: Fix punctuation: 1 And David consulteth with the heads of the thousands and of the hundreds every leader
ANS: 1 And David consulteth with the heads of the thousands, and of the hundreds, every leader,

QUESTION: Fix punctuation: Guests will enjoy a bathtub a shower and a hairdryer provided in the bathrooms
ANS:
Guests will enjoy a bathtub, a shower and a hairdryer provided in the bathrooms.