O&O Defrag is a utility that allows you to work with several file extensions. It can be used to open, edit or even convert files in various formats. Below is a list of file extensions that O&O Defrag supports. O&O Defrag can open files from the list above, so you should install it to work with them successfully.
File types which can be supported by O&O Defrag. Not all of these file formats will be editable with O&O Defrag. Sometimes it may be a file containing settings for software that you are not editing. Go to the subpage of the selected extension to get more information about it.