opening an excel file is simple but, how to display it in the screen?
check visible option from property.
Here is the scenario.
1.if you want to see reading/writing of excel on run time then keep checkbox visible
Due to less item in excel you hardly see excel opening for second . So you can keep some delay(delay activity) to see what is going on
2.Read cell/write cell have behavior that if excel is not opened then bot opens the excel ,read,write and save the record and close the excel but where as if excel is already open then bot just read the excel, write and save and keep it open.