How to add a custom program to "Open With" list of programs in Xubuntu 13.04? How to associate a file with a program to open it with? [duplicate]

How to associate file types with Sublime Text 2? have downloaded Sublime Text 2. I've unpacked it in /opt/Sublime Text 2/ directory.

Now I want to open all .conf files with ST2. But I can't set this easily. Xubuntu doesn't offer ST2 in the list of Open With programs.

I do:

right-click on the fonts.conf >> Properties... >> Open With >> Other Application.

And an Open With window appears. And it doesn't have ST2 application.

How either to add ST2 to the Open With list or how to associate a file with ST2?

UPD:

Similar questions and are not answered:

associate program to a file where program is not in list

How to associate file types with Sublime Text 2?

why are simple things getting hard in Ubuntu (Xubuntu)?

Read this answer: How to associate file types with Wine in Nautilus.

You must create/edit a .desktop file located in ~/.local/share/applications/ or /usr/share/applications/

Locate the Exec= parameter and at the end of the line add %U - it will be replaced with the filename to be opened.

Also see Associating file types in Ubuntu 13.10.

I found this way. And without any command line typing, which is good.

1. In "File Manager" right click on a file (e.g. file.conf) you want to be opened by Sublime Text 2 (or any other application).

2. Choose "Properties". A window titled file.conf - Properties should appear.

3. In its tab "General" click "Open With:" and then choose "Other Application...". A window titled Open With should appear.

4. At the bottom of this window select "Use a custom command:" option and then "Browse...".

5. Browse to the necessary executable, Sublime Text 2, for example.

The most important part now: before click Ok put the selected path into double quotes, e.g.:

"/opt/Sublime Text 2/sublime_text"

because otherwise it cannot accept the path .

This is what I've just tried:

1. Go to /usr/share/applications or ~/.local/share/applications/
2. Create a new file appName.desktop (appName is the name of the app you want to use)
3. Copy content of any other *.desktop file (I used gedit.desktop)
4. Update the content: Name = , Exec = , ..., with %U being the filename to be opened.
5. Save it.
6. Right click on the file you want to be opened with the appName
7. Go to Properties/Open With and click on 'Show Other applications' 8 Your appName should be there, just select it.