Data Export to Excel from Gridview

Hi Team,

i need to export data from gridview to excel sheet (its exporting now),but i want to show COMPANY NAME in the middle top of the excel sheet  and also i need to show as follows:

SL.No,Name,Email,DOB,Address

Note : under Address column we have to show 2 columns like Phone no and Pincode

 in gridivew am showing like

SL.No,Name,Email,DOB,Phone.No,Pincode.

 

hope you understood my question clearly .

 

Any help plz?????????