SpreadsheetConverter is as scalable as any static HTML-page. That means that if your current web server can support hundreds or thousands of simultaneous users, SpreadsheetConverter will also be as scalable. SpreadsheetConverter does all calculations on the client, the server is not involved. Once the web page is downloaded, the server is not needed. A web page created with SpreadsheetConverter is typically only 15-25 Kbytes, i.e. the same size of any HTML-page.