I told you that use Safari is one of the best way to open or edit any file.
you must search a software "Songsbird" on Google and download it, Use it as explorer + notepad + editior + viewer and so more.
If satisfied then reply me...
KumarUtkarsh
Where was any of that listed in your original post? I had no problem downloading the file uploading a file is where the problem would come in to play.
This may be a good way to backup files if your explorer is corrupted but if you have no other options available IMO this will not work for replacing corrupted files. Unless there are a few steps missing.For using all extensions file I will prefer Safari or Opera or Crome
This is your only recommendation and I was using Chrome.
BTW you didn't answer my question what operating system did you test this on?