QUESTION: Fix punctuation: Before you can open a CRDOWNLOAD file youll need to figure out what kind of file the CRDOWNLOAD file extension refers to
ANS: Before you can open a CRDOWNLOAD file, you'll need to figure out what kind of file the CRDOWNLOAD file extension refers to.

QUESTION: Fix punctuation: The objective of this game is to launch the car in the ramp
ANS: The objective of this game is to launch the car in the ramp.

QUESTION: Fix punctuation: Blas Cerd I can be reserved only if the booking start date is between 31 Aug 2015 15 Sep 2015
ANS: Blas Cerda I can be reserved only if the booking start date is between 31 Aug 2015 - 15 Sep 2015

QUESTION: Fix punctuation: wiadefuidll device cant workNo sound Actually in most cases device problem is because of sys files
ANS:
wiadefui.dll device can't work/No sound: Actually, in most cases device problem is because of .sys files.