Microsoft Excel Task Tracker Modification

We are seeking a Microsoft Excel expert to modify and edit an existing custom task tracker to meet our specific needs. The ideal candidate will have experience in handling complex Excel tasks and be able to make precise edits to enhance the functionality of the tracker. Attention to detail and the ability to understand the current setup are essential. The workbook and template are already created. This project is not to build a new tracker, replace the existing template, or redesign it using another template. The work will consist of modifying my existing Excel file and adding the specific functionality that is requested. I will provide clear direction on the changes and functionality required. I need someone who can take those requirements, implement them correctly, test their work, and ensure that existing functionality is not broken in the process. This is not an entry-level or learn-as-you-go Excel project. Applicants should already have the technical ability necessary to modify and troubleshoot an existing Excel workbook independently. Graphics, charts and multipage functionality is included.