Download The FITS program is shareware. Get it, try it. If you don't like it, just delete it again. The shareware version is fully functional. Check the About box of your own version of FITS , to see if this version is newer.
Comments are more than welcome.
If you unzip filters.txt and overwrite your own filters.txt, you will loose any changes that you made to this file. I will not return any junk mail, I just like to read your comments.