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 ...

How to Change a Notepad Document Into an MS Excel File. When you're creating spreadsheet documents to track employee IDs, forecast sales or compare products, you may want to prepare your data in ...

When opening multiple Excel files in their own separate windows, keep in mind that each window represents a separate instance of the program, and system resources used will multiply accordingly.