QUESTION: Fix punctuation: Unsure about which type of M22 file you have Do you want to know exactly what it is who created it and how to open it
ANS: Unsure about which type of M22 file you have? Do you want to know exactly what it is, who created it, and how to open it?

QUESTION: Fix punctuation: check Contains about 18 dietary fibre for a good feeling of satiety
ANS: check Contains about 18% dietary fibre for a good feeling of satiety

QUESTION: Fix punctuation: Idol whitening teeth gel is safe to use Ido White teeth pen is FDAapproved and this only is enough evidence that there is absolutely nothing to fear of its basic safety Furthermore in case your concern is about having to deal with ultra sensitive teeth and that it isnt really fit for you then you are wrong
ANS: Idol whitening teeth gel is safe to use Ido White teeth pen is FDA-approved and this only is enough evidence that there is absolutely nothing to fear of its basic safety. Furthermore, in case your concern is about having to deal with ultra sensitive teeth and that it isn't really fit for you, then you are wrong.

QUESTION: Fix punctuation: He received his doctorate in 1939 at the age of 21 for a dissertation in physics On the Magnetic Scattering of Neutrons
ANS:
He received his doctorate in 1939 at the age of 21 for a dissertation in physics On the Magnetic Scattering of Neutrons.