To Display Excel Spreadsheet with Charts on Websites

Is there anyway to display Excel Spreadsheet with charts (Live, does not need to be editable) on Websites?

Currently I have some Excel reports with charts. I am building a website to display these spreadsheet data. The spreadsheet doesn't need to be editable. But I want it to be displayed right away, instead of a link downloading it locally every time and open it.

Is there anyway easy way I can do this?

Some methods that I have researched but would not work in my case:

1. Google Doc

2. Saving as html output in excel (I want it to be automatically. All the spreadsheet generation/ HTML code creation would be in linux)

3. Sharepoint

Thanks!