- Google Workspace Backup Tool is a secure software solution to backup your entire Google Workspace (G Suite) data into an external drive. It can save Gmail emails as HTML, MBOX, EMLX, MSG, PDF, etc. Moreover, it helps you to directly migrate Gmail emails into a more secure cloud-based platform i.e., Office 365. The application has all the advanced options to facilitate migration. They are widely compatible with all versions of Windows. You can try the trial version of the software.