Why do I need JavaScript when I have Excel?

With Excel, it is easy to design a useful web calculator, but you cannot put the calculator on one of your web pages, not even with the web version of Excel. SpreadsheetConverter uses your Excel file to create a portable, self-contained JavaScript spreadsheet that is easy to insert into any blog or website.

Where can I find a good reference card for JavaScript?

Look at

from Visibone, which has a lot of nice printed reference cards.

Try this Excel add-in now!

Click on Download to install and test this Excel add-in for Windows.

Click on Upload to let us convert a spreadsheet for you for free.