Transform Excel File with a few formulas into an interactive web page

Hi Everyone, I have made a simple calculator with Excel that I'd like to publish online as an HTML page (to be included in my website).

I could convert it into html but it became a static page and it lost the calculator functionalities. How can I convert it into HTML keeping the formulas ? I'd like to use it as an online calculator. I heard that with javascript it is possible to transform an excel file into html, but I don't know where to begin.

I attach the calculator that I'd like to publish, Any help will be really appreciated!

This cannot be done in pure HTML. You either have to write it yourself (probably in JavaScript), or use a third-party product to convert it. If you are not already a programmer, you would have a long uphill climb to do this in JavaScript. Here is one example.

DISCLAIMER: I have never used that product, and I do not endorse it. I am providing it only as an example to show that such products are available. I recommend you do additional research to find a product that meets your needs.