I do not have reference to exact example you are looking, However you can try to refer bulk editor & then custamize it. From Excel save the file as "Tab delimited text" and use that file.
Thanks a lot for answer. Your proposal is one way, I thought about another one, I mean creating some kind of component to select a excel file uploaded in the repository and then create a kind of bundle which will read this file and create a table on a page.
Then create a component that used the JSON rendition to render a table. Probably would only be able to handle very simple (i.e. one table per worksheet) renditions.
You can check a working example package  (use your Adobe ID to log in)
After installing it, go to  for immediate example.
Unfortunately it only supports the old OLE-2 Excel format (.xls and not .xlsx)