1. First, you need to install and activate the YOURLS Import Export plugin. Installation instructions can be found here. 
  2. After installing the plugin, go to "Plugins"  -> "Import/Export" in YOURLS and follow the instructions on the page. Make sure you export the CSV file. Other formats are not supported by Yohn!

  3. Open your Yohn dashboard and go to "Tools" . Click the "Import CSV"  button and select the CSV file you downloaded from YOURLS earlier. Upon completion of the import, you will be redirected to the report page with an overview of import results.

Need more information on how to create CSV files for import into Yohn from scratchRead the CSV import guide.