A .txt file can be opened using various programs depending on the operating system. Commonly used programs include:
- On Windows: Notepad (default), WordPad, Notepad++, Microsoft Word, Editor
- On macOS: TextEdit, UltraEdit
- On Linux: Gnome Text Editor, Notepad++
- On smartphones: Google Docs (Android), File Aid or Pages app (iOS/iPad)
On Windows, the default program to open .txt files is usually Notepad, but users can change it to another program like Notepad++ by setting it as the default application for .txt files. On macOS, TextEdit is commonly used. Additionally, .txt files can be opened programmatically using languages like Python with the built-in open() function. Thus, the simplest and most common program to open .txt files is Notepad on Windows and TextEdit on macOS, while other text editors and word processors can also open them.
