you can use Notepad to type your spreadsheet contents while you're away from your office computer and quickly transform the results into an Excel document. To build a CSV file to open in Microsoft ...

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 ...

Taking this into account, if you’ve mistakenly changed csv to css, Windows may use Notepad to read the file. When you try to open an Excel file, make sure the file’s icon matches the file type.