Write cell is writing data to the excel dynamically but after execution when i open the excel to see that the value in write cell is updated in the excel file, the change is not made

In the properties of excel application scope, uncheck New File option and Read Only option.

Regards,
Karthik Byggari

It is working in my case. Take note on property of each activity you defined. May be you failed to notice to put variable in activity.