How to find column value is blank and update the status without using Loop

Hi @nithya,

Your request of not using loops for performance reasons is not correct. Please read this thread to know more about the two approaches: standard loops (which in the backend probably already use linq) vs. standalone linq query in UiPath.

As per the approach you can use.
You can use a for loop or nested loops and build up all the logic to find where the edits need to be made and when an index matches those conditions, update the status column with the required string and later write it to excel.