Hi,
Reading your project description about changing and extending an existing calculation in Excel Visual Basics beyond 2019 makes me feel like you have me in mind when creating the project. I have all it takes to deliver.
Before you award this project, I can complete a part of this project as a sample. This is so that you can be confident of the hands you will entrust this task. If you are satisfied with the result, you can go ahead and award the project. Please refer to my reviews to see why all my clients love my job.
Do you want me to start working on the sample?