"first_name","last_name","email","role","start_date","end_date","monthly_cost","currency","billable_rate","billable_currency"
"John","Doe","john.doe@example.com","Software Engineer","2023-01-15",,"5000.00","USD","150.00","USD"
"Jane","Smith","jane.smith@example.com","Project Manager","2022-11-01","2024-06-30","6000.00","USD","200.00","USD"