Spreadsheet Installation and Access in Java/Javascript

Hello All,
I am new to the DHX and want to use access the Excel in my JSP page and edit the Excel on the fly and populate the values based on the formulas.
Could Anyone help me to achieve this?

Thanks.

Unfortunately Spreadsheet has PHP backend only.

Hello Stanislav,
Thank you for your response. Then I need to look at some thing else which suits my requirements.

Thanks.