Let’s assume you have a product list in a Notepad or .txt file and need to import it into a column in an Excel spreadsheet. There are two ways to do that.

Learn how to convert CSV to Excel including XLS and XLSX formats using command line interface in Windows 11/10, the easy way.

If that's the case, you can open the CSV file in a text editor such as Notepad to copy the data. Other services may import Excel files directly.