To insert an object in Excel Online, you need to open a spreadsheet first. Then, you can switch to the Insert tab, where you can find all the options to insert almost anything.

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 ...

To have Excel insert the PDF, first open the spreadsheet in Excel. Then, click the "Insert" tab on the ribbon menu and click the "Object" icon within the "Text" group of command icons.

Advanced list solutions are easy thanks to Excel's Table object. If you need a dynamic list, try one of these techniques.