File with no extension will be opened by TextEdit by default. These files are normally just text file so I don't want to use TextEdit open them (e.g. I want to use BBEdit to open them) but because they have no extension I can't find an each way to change the default app to open them in one shot. Change them one by one (as the answer provided by @Seamus) is not workable. 

So is there any way to change them in one shot?