Please capitalize where necessary: if your pc opens the ii file, but it's the wrong application, you'll need to change your windows registry file association settings. in other words, windows is associating ii file extensions with the wrong software program.
A: If your PC opens the II file, but it's the wrong application, you'll need to change your Windows registry file association settings. In other words, Windows is associating II file extensions with the wrong software program.

Q: the military hotel at the corner of st. isaac's square was picketed by armed sailors.

A: The Military Hotel at the corner of St. Isaac's Square was picketed by armed sailors.

Q: additional types of files may also be using the jpg file extension. if you are aware of any other file formats using the jpg file extension, please contact us so that we can update our information accordingly.
A: Additional types of files may also be using the JPG file extension. If you are aware of any other file formats using the JPG file extension, please contact us so that we can update our information accordingly.

Problem: the inflammation primarily affects the last part of the small intestine and to a lesser extent the beginning of the large intestine.
Can you repeat this sentence, but capitalize it?
Answer: The inflammation primarily affects the last part of the small intestine and to a lesser extent the beginning of the large intestine.

Text: before you can open a sel file, you'll need to figure out what kind of file the sel file extension refers to.

Correct capitalization: Before you can open a SEL file, you'll need to figure out what kind of file the SEL file extension refers to.

Text: european roulette is played using a wheel containing 37 numbered slots (1-36, plus a 0), a ball and a layout upon which the player may place a bet or bets covering a single number or groups of numbers.

Correct capitalization:
European Roulette is played using a wheel containing 37 numbered slots (1-36, plus a 0), a ball and a layout upon which the player may place a bet or bets covering a single number or groups of numbers.