Step 1: Download All-in-one WP Migration and install it immediately. Navigate to Site Migration > Export.
Step 2: Click Advanced options to expand them. Select checkboxes to choose data not needing to be backed up (excluding themes and plugins – sometimes, it may be a good idea)
Step 3: Click Eхport button to start exporting.
Navigate to Site Migration > Export. Then drag&drop backup file to upload it.