question: before you can open a fa2 file, you'll need to figure out what kind of file the fa2 file extension refers to.
Capitalize this past sentence correctly.
A: Before you can open a FA2 file, you'll need to figure out what kind of file the FA2 file extension refers to.

question: theatre, painting, foreign cultures, music — especially jazz, and i actively participated in the establishment of copenhagen jazzhouse.
Capitalize this past sentence correctly.
A: Theatre, Painting, Foreign cultures, Music — especially jazz, and I actively participated in the establishment of Copenhagen Jazzhouse.

question: approximate case diameter: 33.5 mm (without crown)
Capitalize this past sentence correctly.
A: Approximate Case Diameter: 33.5 mm (Without Crown)