Hi,
There are a couple of ways.
One would be to add a COM reference to Excel and read worksheet data, and then show those data with DataGridView.
The other may be to use OleDb to connect to the spreadsheet, and then show with DataGridView.
And you can refer to following thread for sample code.
https://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2104957&SiteID=1
Hope this helps!