I need someone to Modify/Add some Features a Web tool that can convert Excel calculations to Web based App -- 4

Job ID: 31612895

Budget: ₹4,000 – ₹10,000 INR

#READ PROJECT DESCRIPTION CAREFULLY BEFORE BIDDING. YOUR BID PRICE IS FINAL. NO LATER CHANGE ALLOWED.#
I already have a web-based tool (http://excel2app.tk/) built that can convert a Excel file (in xlsx format ) to a web app that can also be downloaded as HTML file. However, I need to add some features:
1. It should be able to create chart from the Excel file already converted.
2.The tool presently does not support online math calculation like the original Excel file after conversion. We need to fix that (try this to understand better http://excel2app.tk/edit?name=1630403258457__salary.xlsx).
3. The tool should accept Google Sheet and Macro enabled excel file (.xlsm), VBA coded Excel file and macros should also work after web form/tool conversion.
4. Ability to download original excel file after upload.

The present tool is built on Node.js/HTML/JavaScript.
To make it easy job, you can define some rules for the user that in order to convert your Excel file to a web app, (Tell user to prepare the excel file as per your rule before uploading)..and give them some written instructions.

I need full source code, copyright of the source code and help in deploying on my server.
Lowest BIDDER WILL WIN THIS PROJECT.
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