Column not coming in string in excel

[Ananya1 (a)]

please help me
Srno is not getting updated

[tbrinkman]

it is not getting updated or it should not be updated?

if it should not update, you could assing the origional value back then it is not changed
if it should update but does not update then in_srno does not have a new value or it runs into a new error

[Ananya1 (a)]

Its not getting updated