Cassatta Zig is a TTF character that was created in order to assist you in modifying the overall aspect of your digital papers. All you need to do is get the font onto your computer and then put it to use when writing your documents to see how it will change  their look. To install it, you can simply right-click the file and click Install. Alternately, you can install a font by dragging it into the Fonts folder you will find in the Control Panel page.