Thanks Franco for this one:

SheetPages is a technology that provides a simple HTML front end for complex spreadsheets on Java enabled operating systems including Linux. With the template deployed in a Java Server Page (JSP), spreadsheets can be made available either in view or update mode for multiple users, as needed. The advantage of SheetPages is that complex spreadsheets can be viewed on a wide variety of clients. Many browsers can be used to view spreadsheets because SheetPages generates simple, static HTML. Go here for more info and the free download.