File Setup To build a CSV file to open in Microsoft Excel, you'll need to decide how many columns you'll use in Microsoft Excel for the categories of information you're preparing in Notepad.

Notepad saves a file in .txt format. By using Print to PDF and Save As options, you can save it as PDF and HTML in Windows 11/10.

Text documents created in Unix, Linux, or macOS use different line ending characters. When you try and open them in Notepad you see a garbled mess of text like that shown above.

If your Excel files are opening in Notepad on Windows PC, here's how you can reset the settings to make .xls, .xlsx, etc files open in Excel.

Java is a cross-platform programming language from Oracle that anyone can use. One thing that you can do with Java is create a text document that you can open in Windows' Notepad program.