As an HR, you will be able to get the employee's goals details in a single report utilising the "Review Period Goals" report.

Navigate to

1. Reports > Additional report 

2. Select Review Period Goals report > Click Download option

3. Select the required review period from the drop-down option > Select Download.

PS: Synergita implementation for your Organization may vary from how the features are described here. The screenshots given here may also be different from what you see in your system. Please talk to the concerned person in the Organization for any specific queries.