Yes, it is possible to link the contents of a text box in Excel to data in a cell.

What is this called in MS' terminology: I would call it a text box or an input box. I'm having zero luck searching using those terms. I do find various articles on Office support that describe ...

Adding a text to a cell in Excel using Formula requires use of ampersand operator, CONCAT function, or the LEFT, RIGHT, and LEN functions.

Header text often takes up too much space. Use these three formats to put headers on a diet when working in Excel.