How to import Excel data to use in plotly java

Hi. I recently started to use and plotly and is still learning so please have ur description as beginner friendly and easy as possible.

Like I said in the title, I am trying to import excel file to run it through my plotly have code and have it automatically use those data to create charts. Is there any good way to do this? I also want to share the code with some of my friend and have them use it as some kind of tutorial, so it would be great if this doesn’t require system download, which my friends wont have when they run my code.

Thanks in advance.