How To Open nis File
You're trying to open a .nis file you've received through an email attachment or a file on your hard drive, but your computer won't let you do it. You get an annoying pop-up window that says, "Windows can't open this file".
The reason why you can't open your .nis file is because you don't have the EXACT .nis software to open that EXACT .nis file extension. What could be more frustrating?
Finally... there is a way to open ANY .nis file on your computer - without buying expensive and complicated program (many costing $500 or more).
FileViewPro lets you open ALL kinds of files quickly and easily, including videos, music, photos, documents, and much more. Install FileViewPro now and have ONE program that does it all. You’ll never struggle to open a file again.
Download nis file viewer