Please capitalize where necessary: role-playing games where participants assume the roles of fictional characters and collaboratively create or follow stories are dominant in this category.
A: Role-playing games where participants assume the roles of fictional characters and collaboratively create or follow stories are dominant in this category.

Please capitalize where necessary: almost all places in switzerland, large and small, get a hot plate, which is designed to keep food warm.
A: Almost all places in Switzerland, large and small, get a hot plate, which is designed to keep food warm.

Please capitalize where necessary: in seconds, you will learn exactly what type of asd file you have, the software program associated with your file, the publisher who created it, its security safety status, and a variety of other useful information.
A: In seconds, you will learn exactly what type of ASD file you have, the software program associated with your file, the publisher who created it, its security safety status, and a variety of other useful information.

Please capitalize where necessary: in the case that your f4a file doesn't open, it is highly likely that you do not have the correct software application installed on your pc to view or edit f4a file extensions.
A:
In the case that your F4A file doesn't open, it is highly likely that you do not have the correct software application installed on your PC to view or edit F4A file extensions.