make textedit the default app for new file types
71783
How to set up a default program opening an unknown file extension?
104283
How do I set the default file association in Ubuntu Nautilus to something that is not listed in the Open With tab?
50985
Make nemo the default file browser
35578
Set default font for Output
71131
How to add an extra searchable dir with personal style files to TeXLive, NOT under ~/Library/texmf?
62146
How can I make Notepad++ default program for `.txt` files?
118572
Change the default application (for a file extension) via script/command line?
136699
Nautilus context menu option to create new file
7044
How do I change the icon for a particular file type?
155469
\emph or \textit
120121
How to Change File Type Associations?
20562
How do I change the MIME type for a file?
8743
Programmatic equivalent of default(Type)
14208
How to set the default program for opening files without an extension in Windows?
18010
Getting the default text editor used in system
44610
How to create my own file extension like .odt or .doc?
59708
Automatically use specific language in Notepad++ for files with no extension