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 ...

Google Drive has been integrated even further into Gmail: you can now insert up to 10GB of files without ever leaving the email service.

You can combine Word documents using a built-in tool to add as many documents as you like to a single file.