The export feature in Notion allows users to backup and share their data in a variety of formats, including PDF, Markdown, and CSV. This feature is useful for creating a backup of your data, sharing your data with others, or importing your data into another app.

Examples of how you can use the export feature include:

1. Creating a backup of your data: You can export all of your pages, databases, and other data to a file format like PDF or Markdown. This can be useful as a backup in case something happens to your account or you want to access your data offline.
2. Sharing your data with others: You can export your data to a file format like PDF or Markdown and share it with others. This can be useful for collaborating on a project or sharing information with team members.
3. Importing your data into another app: You can export your data to a file format like CSV and then import it into another app like Excel or Google Sheets. This can be useful for analyzing your data or using it in a different way.

It's worth noting that not all the export formats are available for all types of data on Notion. For instance, exporting a Notion database to a CSV file will allow you to see all the properties of each item in the database and their values, while exporting the same database to a PDF or Markdown will give you a static document with a snapshot of the database as it looked at the moment of the export.

Exporting data in Notion is a feature that is available for all users, but the export options might vary depending on the subscription plan.