I Importing Excel Data In Gridview Further I Want To Pass Gridview Row Selected Data On Another Page How? In Asp.Net C#

Fast but dirty I would say pass it along in the url.
response.redirect("www.mysite.com/mypage.aspx?VALUE1="+gridview selected row cell 1 value"+&VALUE2="gridview selected row cell 2 value"
then on the new page retrieve the data using request.querystring("VALUE1") and set it to a variable on the page( string value1 = request.QueryString("VALUE1"); int value2 = request.QueryString("VALUE2") )