You've never wanted to open a multi-megabyte data file in a text editor before?

"You shouldn't be opening large files in it anyhow" is a cop-out. My text editor needs to edit whatever text files I throw at it. Choking on too-large a file is a showstopper.

Automatic code generators have a nasty habit of spitting out huge source and header files, I'm routinely digging around in such files (ASN.1 to C++, multiple files 10MB and up) and switching editors to do that would be completely unacceptable. It would be more of a hassle if the compiler split up the output.

That might be true but my tools should never dictate how I work.

Tell that to the vendors and various api-s that love to produce 20-50 MB xmls

I need to view and edit CSV files which are consistently hundreds of MB, sometimes a couple of GB. It's the way it is, I can't help the format in which vendors send us files...