This comprehensive course elevates the typical use of Excel from mere number crunching to an advanced tool for decision-making. Participants will benefit from a deep dive into best practices for worksheet layout and design, gaining skills to structure Excel sheets for clarity and efficiency. The course also covers key Excel features to ensure data integrity, such as data validation tools, cell and worksheet protection, and workbook protection, empowering users to maintain control over their data. Additionally, the instruction on formula auditing tools, error checking, and tracking changes will significantly enhance the accuracy and reliability of calculations. With detailed screenshots and an interactive Excel practice file, this course provides participants with practical skills to create well-organized, secure, and accurate Excel workbooks, enhancing their analytical capabilities and decision-making processes.