What are some common challenges faced by Excel programmers when working on large-scale data projects?

Excel Programmers often encounter challenges such as managing the performance of complex workbooks, ensuring data integrity when handling large datasets, and maintaining compatibility across different versions of Excel. Collaborating with other team members can also be tricky, especially when multiple people are making changes to the same file. Effective version control, structured documentation, and consistent coding practices are crucial for overcoming these challenges and ensuring smooth project delivery.