The Gmail Backup Tool is designed to export Gmail emails to Office 365 with full accuracy. It supports large mailboxes and thousands of emails without slowing down. After login, the software scans Gmail folders quickly. You can choose multiple folders at once. The Office 365 connection is established securely inside the tool. Email content, attachments, and headers remain original. This method avoids duplication and missing emails. The tool also logs the migration progress, helping users track completed exports.