Please capitalize where necessary: let's look at some typical examples.
A: Let's look at some typical examples.

Q: unsure about which type of w3cat file you have? do you want to know exactly what it is, who created it, and how to open it?

A: Unsure about which type of W3CAT file you have? Do you want to know exactly what it is, who created it, and how to open it?

Q: all over the country, you have the opportunity to meet devoted scientists who are passionate about their field and about conveying what they do and why they do it.
A: All over the country, you have the opportunity to meet devoted scientists who are passionate about their field and about conveying what they do and why they do it.

Problem: have a walk and discover the walls covered with scenes of the ancient egyptian history.
Can you repeat this sentence, but capitalize it?
Answer: Have a walk and discover the walls covered with scenes of the ancient Egyptian history.

Text: similar games to robin the mercenary

Correct capitalization: Similar games to Robin the Mercenary

Q: 2. protection of your sales area.ideas of design and all your private information

A:
2. Protection of your sales area.ideas of design and all your private information