Create complex formulas and functions to analyse data Develop and maintain complex spreadsheets and databases Design and implement automated processes for data entry, analysis, and reporting Create pivot tables and charts to visualize data Develop macros and VBA scripts to automate processes Create custom reports and dashboards to present data Troubleshoot and debug errors in formulas and functions Develop and maintain data integrity and accuracy Develop and maintain data security protocols Integrate data from multiple sources Train and mentor other users on Excel features and functions