Hi @vgulati4 ,
Could you please tell me:
Have you saved the working days you need to send mail in Excel?
You can create a schedule flow that runs once a day and add a Condition to see if the date in the Excel table is equal to today.
If the dates are equal, the email will be sent, and if the dates are not equal, the process ends.
I have made a test for your reference:



Best Regards,
Levi