The files in the application are proprietary which means you can't view them unless you use the Scion Image. However, you should look for ways to export the files. To do this, go to File > Export or File > Save as. If you have the possibility, export the files as AVI and then you can play them with every video player you want.
You can find additional information about Scion Image using: http://fiji.sc/Importing_Image_Files