Please follow the below steps to view the deactivated employee's feedback.

1. Log in as an HR

2. Go to People ->My team - >Filter ->Active status -> Select Inactive

3. Now, you can able to view the inactive employee list 

4. Select the employee and view their performance in the Performance tab

5.Select View Past feedback.

The HR Admin can export the feedback details of the deactivated employees with respect to the cycle.