To export your Outlook emails, contacts & other data to Gmail there are two methods you can use. One is long can complicated manual method and other is an easy and fast method using third-party software.
In the manual method first, you need to export your Outlook mailboxes and folders to a PST file using Import/Export option in MS Outlook application and then use a tool called GSSMO from Google to import data from PST file in your Gmail Account.
In the second method, you can use vMail OST File Converter Tool to directly export your Outlook data from OST file to Gmail.
More Details- Import OST file data into Gmail
OST to Gmail migration is a big deal to perform as many user need to know about this migration process and make their data portable to Gmail server. The user can solve their migration issues by using the Softaken OST to Gmail Importer utility. This will going to import your OST file data into GMail server directly without any issues. To know more about this visit here:- https://www.softaken.com/ost-to-gmail-importer
Launch KDETools OST to PST tool.
Browse and Add OST files.
Preview of all OST items, folders.
Click to button top “GMail button”
Enter your G-mail credentials ID/Pass and Connect to server.
Click on Convert now button to import OST data to Gmail account directly.
Download/Install OST to Gmail Converter tool is a reliable & easy solution to convert corrupted OST data into Gmail account including mailbox items –contacts, drafts, tasks, notes, etc. This tool safely import OST to Gmail account included multiple file folders such as – 14 plus file formats according to you such as- Zimbra, PST, EML, EMLX, vCard, ICS, MSG, MBOX and etc.
more info- Import OST to PST