Want to change excel value when particular value of cell changes

Kindly elaborate a bit more in the issue pls
Cheers @Bhagyashri

As u can see when invoice changes the posting key should get changed and again it continues with the same so i want to built a flow which can do so and also want to add blank row a before the posting key get changed

@Bhagyashri, couldn’t understand. could you please be more specific?