As @Lusil suggests, check your browser's settings. Check the Save As type when you're downloading (also a browser-driven function). If that doesn't work, try another browser, preferrably one without extensions or addons enabled.
As @Lusil suggests, check your browser's settings. Check the Save As type when you're downloading (also a browser-driven function). If that doesn't work, try another browser, preferrably one without extensions or addons enabled.