Please capitalize where necessary: before you can open a od5 file, you'll need to figure out what kind of file the od5 file extension refers to.
A: Before you can open a OD5 file, you'll need to figure out what kind of file the OD5 file extension refers to.

Please capitalize where necessary: japanese wife, japanese massage
A: Japanese wife, Japanese massage

Please capitalize where necessary: the scanning process takes place, on completion of which the list of retrieved pictures are displayed
A: The scanning process takes place, on completion of which the list of retrieved pictures are displayed

Please capitalize where necessary: after the battle of waterloo, napoleon was late into exile again.
A:
After the battle of Waterloo, Napoleon was late into exile again.