Please capitalize where necessary: the fastest and easiest way to open your arc file is to double-click it.
A: The fastest and easiest way to open your ARC file is to double-click it.

Q: individuals with surname hirtschel

A: Individuals with surname HIRTSCHEL

Q: join the racing team of your favorite cartoon network heroes.
A: Join the racing team of your favorite Cartoon Network Heroes.

Problem: no eye had pity on you to do any of these things to you or to be kind to you; but you were put out into the open country, because your life was hated at the time of your birth.
Can you repeat this sentence, but capitalize it?
Answer: No eye had pity on you to do any of these things to you or to be kind to you; but you were put out into the open country, because your life was hated at the time of your birth.

Text: it had various instruments such as a 4 metre wall quadrant made from copper and an azimuth quadrant which was the invention of al-tusi himself. al-tusi also designed other instruments for the observatory which was far more than a centre for astronomy.

Correct capitalization: It had various instruments such as a 4 metre wall quadrant made from copper and an azimuth quadrant which was the invention of Al-Tusi himself. Al-Tusi also designed other instruments for the Observatory which was far more than a centre for astronomy.

Text: here is some ideas if you are in denmark, on zealand, thinking about taking a one-day-trip to skane in sweden in a car.

Correct capitalization:
Here is some ideas if you are in Denmark, on Zealand, thinking about taking a one-day-trip to Skane in Sweden in a car.