question: 4. if you don't want mitered corners, just leave the folds as they are and iron them down flat.
Capitalize this past sentence correctly.
A: 4. If you don't want mitered corners, just leave the folds as they are and iron them down flat.

question: the easiest way to do this is in spirit, while the body remains at rest on earth. this is called astral travel.
Capitalize this past sentence correctly.
A: The easiest way to do this is in spirit, while the body remains at rest on Earth. This is called astral travel.

question: incomplete download: many times, we download winrar file from internet and you will not able to extract it if the winrar file is not downloaded properly.
Capitalize this past sentence correctly.
A: Incomplete Download: many times, we download WinRAR file from internet and you will not able to extract it if the WinRAR file is not downloaded properly.