To run xViZit, you need a Java Runtime Environment (Java 8).
Please use the bat file to start the application after you extracted it. The samples directory contains three small spreadsheets to demonstrate the capabilities.
https://goo.gl/udXqp6 (please select the download icon in the top toolbar)
Please keep in mind that this is ongoing work – I would really appreciate any kind of feedback, bugs, reports, requirements – just let me know!