The Excel Import plugin is capable of:  

(i) Importing table headings from an Excel or CSV file as schema classes.
(ii) Creating a mapping diagram.
(iii) Importing data as instance specifications to a schema class and according to a class mapping.
(iv) Exporting elements or instance specifications into an Excel or a CSV file.

You can access the main features of Excel Import either from (i) the main menu in MagicDraw or (ii) the context menu of a schema class or a class mapping.