How to Save a File in CSV Format in Microsoft Office 2007. ... This tells your computer how to read the file and avoids Notepad automatically saving it as a .txt file. References.

To open a CSV file in Notepad, you need to open Notepad > click on File > Open. Then, select All Files and choose the CSV file. Read: How to Convert CSV to Excel (XLS or XLSX) using Command line.

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.