I work in windows form c# visual studio 2015
I have Excel file name test in c:/test
I have textbox for username ?
I need when write username ahmed in my windows form in textbox1 and then click button
write in excel sheet
1 ahmed
After that if i write new name as michel
then in excel will be as following
1 ahmed
2 michel
Meaning any new nam written in textbox1 then it will append on excel file with No +1 and name writen in textbox1
this will done when i click to button ?
can any one help me in that