Please capitalize where necessary: enamel, signed by paul prieur 1669.
A: Enamel, signed by Paul Prieur 1669.

Please capitalize where necessary: did someone email you a st file and you're not sure how to open it? maybe you have found a st 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 st file related error message.
A: Did someone email you a ST file and you're not sure how to open it? Maybe you have found a ST 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 ST file related error message.

Please capitalize where necessary: we can delete a file, directory, or selection of directories and/or files with the option "wipe".
A: We can delete a file, Directory, or selection of directories and/or files with the option "wipe".

Please capitalize where necessary: a unique service offered for volvo fmx: driver development course, working in construction.
A:
A unique service offered for Volvo FMX: Driver Development course, Working in Construction.