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 ...

Learn how to import or export data from a Text file to convert a Text (.txt or .csv) file into an Excel (.xlsx) spreadsheet easily using this procedure.

How to Convert RTF to Excel. The Rich Text Format, ... Open your RTF file in WordPad, available by expanding the Windows Start menu and typing "wordpad" in the search box.