How can I change the data source of a chart in Microsoft Word?

I have a word document that is filled with charts. All of these charts pull data from one excel file. This excel file is stored on our company network, so my worry is that when I send the word document externally, the link will break and data will not be able to be displayed in the charts.

Because of this, I want to change the source of the data to be stored within the word document (like how it is if you create a chart in word by simply pressing the insert chart button).

Let me know if you want any clarification on what I'm trying to accomplish.