Importing contents of text document in Excel

Hi,

Can anyone tell me if there is a way to import the content of a text document (.txt, .doc, etc.) in an Excel cell?

The only way I found is by inserting the entire text document, but then you get this floating screen or a file icon which I think looks messy. I work with freelancers and I'd prefer it if they worked in separate text documents in the cloud and not touch the Excel sheet as there's a lot of other data.

Preferably, text makeup should be conserved, as Wordpress recognizes Word headers too.

Any other way than what I just described?

Thanks!