Welcome to uipath community
- Go to activity panel → Filter → Show Modern [Select]
-
Use the Excel Process Scope activity
-
Use the Use Excel File activity
-
Use Insert Column activity

-
Use Read Range activity → Store it as DtRead
-
Use For each row in Data Table activity
Inside the For each row in Data Table
- Use assign activity
CurrentRow("Your ColumnName Or Index")="Your Output value"
Outside the For each row in Data Table
- Use Write Range activity

Hope it will helps
Regards
Gokul

