Clean & Standardize Raw Customer Data
"Clean and standardize the attached raw customer dataset with columns: [Columns: name, email, phone, address, signup_date]. Include steps to: 1) Remove duplicates (based on email); 2) Standardize email formats (lowercase, fix typos like gmial.com" to "gmail.com"); 3) Validate phone numbers (format as [Country Code: +1] XXX-XXX-XXXXADVERTISEMENT - IN-ARTICLE
Implementation Guide
flag invalid numbers); 4) Standardize addresses (split into street