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 ...

An Excel file, called a workbook, is composed of multiple worksheets. If you want to add a header or footer to all sheets, select every sheet by right-clicking one of the sheet tabs at the bottom ...

Excel Add-Ins are applications written by independent programmers that provide enhanced capabilities for the primary software. Here's how to install, manage, and choose the best Add-Ins available.