Hi Nithin,
1. Click on More and then click on MariaDB on the connect pane on right side of welcome screen.
2. A dialog box below opens.
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3. Enter the server, username and password for the server. 3306 is the default value for port.
4. Now click and sign in.
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5. Now select the database required.
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6. You can see 2 buttons in the data section. (select automatically update to update data whenever updated to refresh )
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7. Then drag or select the sheets required and go to Worksheet.
Hope this helps you.