I have some relatively large* XML files (about 3MB) which I need to work with (view certainly, edit would be nice).
They're not formatted - there are no line breaks in the files - which means most of the editors I've tried to open them with have struggled, and FireFox took about half an hour to open one of them.
What are good (preferably GUI) tools for this kind of thing?
I'm on Ubuntu some Gnome-biased is great, but to be honest anything that does the job is great enough. The application which creates them can comfortably handle a valid reformatted file, so if the lack of formatting is lost on a save that's not an issue. I don't really want to have to preprocess the files to tidy them before opening, though, as the files change frequently.
[*] Personally I find it hard to believe that 3MB is "large" in today's world, but I guess it is quite a long line if you're expecting line breaks.