The Insert menu is primarily used to add pivot tables, tables, illustrations, charts, 3D maps, filters, text, symbols, links, and comments to your Excel spreadsheet.

How to Insert an Attachment Into an Excel Spreadsheet. When you insert an object into an Excel file, such as a PDF file, Word document or an email message, you can access it more easily during a ...

Insert the PDF file into a cell in the Excel worksheet by clicking on the cell then selecting the "Object" option from the "Insert" menu.