1. Choose Projects and select a project, or choose View all projects to visit the projects directory.
2. Select the relevant project.
3. Click Reports, then select:
4. Sprint Report if you are in a company-managed project.
5. Burnup report or Sprint burndown chart if you are in a team-managed project.
6. Select the relevant sprint from the sprint drop-down.
7. Select more () > Reopen sprint. The Reopen Sprint dialog will be displayed, showing you the outcome you can expect when the sprint is reopened
8. Click Reopen.