For a project that I am working on I have to deal with very large files something like 1-2 GB. Do you know any text editor that I can open those files with?
I would try to use a .dbf editor rather than a text editor. It sounds like your data could fit into attributes for records (as columns) and that naturally works better as a database file. And if you need to do things like sort your records or search through them, life will be easier if you use a database editor. This assumes of course, that there's some 'form' to your file and that it's not just a long string of data. If, for example, you have headers for the data following it, you could import your file into a dbf editor.The extension of the files are .ts and they include transaction data such price stock code size of order etc.