Difficulty in exporting data

I need to know how many objects are inside a field, but when I try to export the field, it brings me all the object data.

In this example:
The Collection is JobOpenings
I need to know how many objects there are inside the “Candidates” field - but I don’t need the information inside each Object. You only have 1,2,3,4… object.

Can anyone help me? Thank you!