Apps4.Pro Planner Gantt extends Office 365 Planner to manage Plans and its tasks effeciently.
Once you install this extension, from the Office 365 Planner, you can
– Export / Import Planner tasks from Excel
– Create new plan and manage tasks from Gantt chart
– Create Task dependencies from Gantt
– Monitor Plans progress using Burndown Chart
– Create Custom Fields for Planner tasks
– Create Sub tasks