There are many of the best Gmail backup software. You can do it manually, but it's too time-consuming and risky for the original file. Simply try the TrustVare IMAP Backup Tool which can backup your Gmail emails and save them in the local system or PC. It will transfer your data in multiple formats like PST, MBOX, MSG, and EML without any issues. The software is easy for non-technical users and they can use the software without technical skills. It will run on all Windows OS versions like 11, 10, 8.1, 8, and 7 without downloading any other software.