Oumar Sall
Data Analyst | Excel, SQL & Power BI Expert
New to Contra
Oumar is ready for their next project!
Performed data cleaning and preparation on raw datasets by identifying and removing duplicates, handling missing values, correcting formatting errors, and standardizing data structures. Prepared clean and structured datasets ready for analysis and reporting to ensure accurate and reliable business insights.
I’m a Data Analyst specializing in Excel, SQL, and Power BI. I help businesses clean, analyze, and visualize data to create clear reports and interactive dashboards that support better decision-making. I’m currently available for freelance projects and committed to delivering...