How do you change the default opening application?

[marc]

Tony Baldwin wrote:

> marc wrote:
>
>>>>> Right click and select Properties|Open With|Add
>>>>> You can then add the application if it's not already there. Select 'Use
>>>>> Custom Command to put in the path of the app if it's not listed in your
>>>>> applications.
>>>> Yes, tes, I know, but this isn't what I'm asking.
>>>>
>>> Well you've got me there... Just what _are_ you asking then?
>> 
>> To change the default app when a filetype/mimetype doesn't exist. When
>> the system has no idea what the file is.
>> 
>
> Do YOU know what kind of file it is?

Maybe, maybe not. It's not important.

> Without that little tidbit, we can't tell you what application to use to 
> open it.

That's the point: I want a default app for "unknown/unassigned" file
types.  Basically, I'll just assign a text editor, because that's the
most useful general tool, imo.

This was working fine until a recent random "upgrade" when a completely
inappropriate app somehow became the "default" app.

> What is the file extension?

Never mind, I'll sort it out.

Thanks anyway.

-- 
Best,
Marc

"Change requires small steps."