When you use SpreadsheetConverter Java/JSP, you need to have the JDK and a webserver like Apache Tomcat installed.

You download the JDK from

http://java.sun.com/javase/downloads/index.jsp

(You need the JDK, the JRE is not enough.)

You download the webserver from

http://tomcat.apache.org/

Build live website calculators and web forms now!

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Just download, install and test the Excel add-on now. Or let us convert a spreadsheet for you, for free.