In view of the fact that the FITS Viewer is in our database as a program to support or convert various file extensions, you will find here a FITS Viewer download link. Get the software from the FITS Viewer developer website. Before you will download the program, make sure that you not have application FITS Viewer on your device installed yet - this will allow you to save some space on your disk.
We do not store any files with the setup of the FITS Viewer on our server but help to find the most reliable source from where you can download the application from. By clicking on the button "More info about FITS Viewer" you should be directed to the official website of the FITS Viewer developer where you can download the application.
More info about FITS Viewer