A Microsoft Outlook Excel developer designs, develops, and maintains Excel-based applications, systems, and tools. They use VBA (Visual Basic for Applications) programming language to automate tasks, analyze data, and solve complex problems. They create custom functions, macros, and forms, and integrate Excel with other Microsoft applications like Outlook for enhanced functionality. They also troubleshoot and debug Excel applications, ensuring optimal performance. Additionally, they may design and implement data models, create dashboards, and generate reports. They work closely with clients or end-users to understand their needs and provide tailored solutions. They also ensure data security and compliance with data governance standards.