HFE is open source project for editing huge text files on Windows platforms. No installation required, can be used as portable app.
Hello. It works very fast. Are you realising a newer version? This one has really little options. PD:I had the same problem than other user, when you save the file it's broken and only keeps a few lines.
I have opened huge text file (1.83 GB), removed some lines at the file beginning and saved file (Ctrl+S). File becomes truncated (53.4 MB), data lost :(