On your Dashboard, go to Tasks / Requests / Projects (depending on what you indicated in your settings)

Click on the icon beside Filters
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Select Export

Confirm the action by clicking on the Export button
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You'll receive a CSV file of all the Task data

On your Dashboard, go to Users > Clients

Click on the icon beside Filters

Select Export

Choose the desired date range
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Click on Export

You'll receive a CSV file of the selected Client data

On your Dashboard, go to Users > Teams

Click on the icon beside Filters

Select Export

Choose the desired date range

Click on Export
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You'll receive a CSV file of the selected Team data