While it is technically possible to open an Excel file in Notepad, this is not a good idea. Excel files are binary files that contain complex formatting and data structures. When you open an Excel ...

An Excel Spreadsheet is a file that contains columns and rows. All the rows are numbered (row 1, row 2, row 3, etc) and the columns are listed alphabetically (column A, column B, etc.) Each cell is ...

If you have a list of email addresses in an Excel spreadsheet, you can import this into a Mac Address Book by converting the Excel file into a text-based Comma Separated Value file. Address Book can ...