Hi, there!
My name is Paris, and I was glad to see that you're looking for an Excel developer. According to your brief, you want to have an application in Excel that will send notification emails 60, 30, etc. days before due date. I've implemented similar functions dozens of times in the past.
I'm among the most experienced, and skilled Excel, and VBA developers on this platform. I have completed over 280 projects successfully in six years, and I feel confident to complete your project as well. You're welcome to visit my page (https://www.freelancer.com/u/paris2785) and get an idea of who I am and what services I provide to my clients.
I will charge you $22/hour.
I'm online from 8 am to 9 pm, Athens time (including weekends).
I'm looking forward to working with you.
Sincerely,
Paris Pallas