To import complete content as per the live demo, you may find Live-demo-Content.zip file included in the complete package downloaded from ThemeForest. You can import using the default import feature under Tools > Import and make sure WordPress feature is installed.
IMPORT USING DEFAULT WORDPRESS IMPORTER
STEP 1: Login to WordPress admin dashboard.
STEP 2: Go to Tools > Import
STEP 3: Under WordPress, click Install Now
STEP 4: Click Run Importer
STEP 5: Click Choose File, and select demo-content.xml
STEP 6: On Assign Authors page, under Import author as listingpro (listingpro) select WP Admin from drop-down.
STEP 7: Under Import Attachments, check the box next to Download and import file attachments.
STEP 8: Click Submit
IMPORTING FROM THE LISTINGPRO WIZARD
If you have installed ListingPro and haven’t chosen the Demo Content to import, you can simply run the ListingPro Wizard again, skip the plugin installation and head over to the Demo Content Import.