Please capitalize where necessary: did someone email you a ndf file and you're not sure how to open it? maybe you have found a ndf file on your computer and wondering what it's for? windows might tell you that you can't open it, or in the worst case, you might encounter a ndf file related error message.
A: Did someone email you a NDF file and you're not sure how to open it? Maybe you have found a NDF file on your computer and wondering what it's for? Windows might tell you that you can't open it, or in the worst case, you might encounter a NDF file related error message.

Please capitalize where necessary: sofia is one of the oldest cities of europe clashed here influences of east and west and left after a lot of memorabilia old orthodox boyana church arouses admiration of tourists.
A: Sofia is one of the oldest cities of Europe clashed here influences of East and West and left after a lot of memorabilia Old Orthodox Boyana Church arouses admiration of tourists.

Please capitalize where necessary: i just watched this ja rule interview yesterday.
A: I just watched this Ja Rule interview yesterday.

Please capitalize where necessary: changing styles, the overall effect is elegant, excellent workmanship and quality.
A:
Changing styles, the overall effect is elegant, excellent workmanship and quality.