i have strong knowledge in excel , sql, and tableau. i can  analyze, manipulate, and visualize data using various tools, depending on the specific needs of the project or task . by using  excel , i can create complex spreadsheets and automate repetitive tasks. and by using  SQL, i can manage and manipulate data in relational databases, extract information, and generate reports. and by using  Tableau, i  can create custom dashboards, design visualizations, and develop data models to provide insightful data analysis.