Hi,
In the meantime, we have removed xml files from plugins installation package. Please follow the procedure below in order to import demo content:
1. Once you have installed and activated Bold Page Builder, you can download demo import package here: https://bold-themes.com/local/bold_builder/demo_data.zip.
2. Please unpack demo_data folder and upload it via FTP to your plugin’s export_import folder (the server path is usually: \wp-content\plugins\bold-page-builder\export_import)
3. You should have \wp-content\plugins\bold-page-builder\export_import\demo_data\ with a number of xml files in it.
4. If everything went well, once you refresh your wp-admin console you should have Bold Builder Import item in Tools menu of your wp-admin
To import demo go to Tools > Bold Builder Import and select a desired demo.