Solve problem for unknown file types to open

Have you ever found problem that unknown files type to open ? I often get this problem so i find out for solve this and i want to share experience

I found website that help fix problem that unknown files type to open .This web site is called Openwith.org .You only search file type and click search

Results of the file type extension will  appears, click on the name, you need to find a software to open. 

Subsequently, the site will show a program that can open the file. Or you  can click the link to download the program through this web site immediately.   try on at  OpenWith.org.