CSV Contact Lists Consolidation €10.00 – 30.00 EUR

I have several CSV files containing contact lists from our CRM. These files contain various attributes across different spreadsheets, with many contacts repeating. I'm looking for someone to merge these into a single master CSV sheet. Key Tasks: - Use Email as the unique identifier for the contacts. - In the case of conflicting attribute values for the same contact, keep both attributes in separate columns. - Merge common attributes into a single column. Ideal Skills: - Proficiency in data handling and manipulation. - Experience with CSV files and spreadsheet software. - Attention to detail to ensure all data is accurately merged. Example: I have 12 CSV sheets. In 8/12 sheets I have the Contact Max Payne. In every sheet I have the unique ID (same email) for Max Payne, but different attributes/columns (age, gender, phone number, etc.). In the final master CSV, I want Max Payne with all the columns from the 8 sheets in the same row.