Attempting to link multiple workbooks

I have some skill when it comes to excel, and use google for the rest, but I'm not winning this time.

I've got an excel workbook for each employee (a work performance tracker). I want to link all the employees performance information together into one workbook.

My issue is that the initial employee workbook is blank, and then each time a new employee is added, their info is filled out and the workbook is saved under their name.

How do I link the newly saved workbooks and have the information continually upload to this combined workbook?

Running latest excel version. 2016.

Thanks a bunch!