Emacs: Change File Newline Format

Change File Line Ending Between Windows, Linux, Mac

1. Open the file
2. Alt+x set-buffer-file-coding-system.

If you want utf-8 encoding, chose one of:

• utf-8-dos → Microsoft Windows
• utf-8-unix → Unix, Linux, MacOSX
• utf-8-mac→ classic Mac OS (dated before 2002)

then save the file.

Which newline convention is used for the current file?

See the value in variable buffer-file-coding-system 〔see Emacs: Show Variable Value and Doc〕