Greetings, dear client!
Why overpay?
Just 70 dollars; 3 days only!
I've read your VSTO-add-in project details and will be happy to help you as this work fits my developer skills.
I'm a programmer (Visual Basic for Applications (VBA), VB.NET, Visual Basic 6, Visual Basic Script Edition) with 15 years of experience, strong at mathematics, have been working with Microsoft Office since version 2000. Among add-ins for MS Office I write, there are VSTO add-ins, COM add-ins, add-ins for VBA IDE (Visual Basic Editor).
As an expert-level VBA/VB.NET developer, I can write the required MS Excel VSTO add-in able to successfully complete the whole 6-step process your current VBA code does or to safely report the errors that happened in a user-friendly manner.
It will add its Office Ribbon elements as requested in your task description.
I'm free for this work in the nearest future, will start right after hiring, and complete it in a short time (only 3 days are required).
Please hire me for high-quality, robust, and well-commented code that follows the best programming practices.
Let's discuss any details in a chat here.
Thanks.