Protecting data in a Word table isn't as simple as turning a protection feature on, but it's possible using Text Form Field controls.

If you store values and formulas in a Word form field, Word can apply a data type to the data rather than interpreting everything as normal text. Form fields can store static values and formulas.

Another option is to open the form in a form-conversion software program, such as Adobe Acrobat. This will permit you to create actual fill-in form fields, where recipients can tab and type.

How to Make Word Documents Fillable but Not Editable. Use Microsoft Word to create your own business forms that can be completed electronically by customers and returned to you.