If you want to preserve the current state of an Excel file and yet be able to change it, you can always copy the current workbook to a new file. You can then add your changes to the new copy.

Data tables are presented in Microsoft Excel format.The data is presented in columnar format.Calculations and Formatting can be done on the data. To Save a Excel File to Disk To save a Excel file to ...

How to Copy a List of Files in a Windows Folder Into an Excel List. Maintaining an Excel spreadsheet of computer files can help you keep track of important business documents or images ...