$97
Converts spreadsheets to good-looking intelligent web page and live web charts. Add a Send button and use the free form-to-Inbox service to send the completed forms with forms fields and their stables to your email . Your forms can use menus, calendars, check boxes, list boxes, large text fields etc. Use SpreadsheetConverter to create expense reports, user surveys, order forms, reservation forms, employment applications, financial calculators and engineering applications for the web. Converts charts into live Flash animations.
The almighty Excel natively supports to save files as html web page, the problem is that the html file could only presents data, visitors of the web page can’t interact with it and do their own calculation. Fortunately there are third-party office add-ins such as the spreadsheet converter which can make interactive web calculator that looks and functions just like the one you made in excel. All you need to do is to finish the calculation in excel, hit the “convert” button, then upload the converted html calculation form to your website.
The step by step guide about how to make interactive web calculator with MS Excel
Download spreadsheet converter, this add-in is absolutely light weight and works flawlessly during our test.

After installation, open the excel file you’d like to publish online. Click on “spreadsheet converter V6” on the menu, if the calculator is already well polished, you can just hit the “convert”, pretty soon the web version of your excel calculator will be generated and available to be uploaded to your website.
Also to note that you can further customize the web calculator by adding “submit” or “print” buttons in the spreadsheet..jpg)

Now the visitors of your website are able to do their own calculations with your web calculator
Buy SpreadsheetConverter HTML Std $97