Filesize limit in scripts

Hi,
does anyone know if the maximum filesize of files a script can process is going to increase some day? My last info is that characters after the 4k bytes will just be ignored.

As I'm importing mac-ip pairs for an automated login process its kinda annoying to work with file 1 to n

If it's only about reading, there is a read command that allows to read any part of a large file.

Oh nice that way i can iterate through these files, do you know by chance is there a max limit of arrays?

Not sure, I don't see anything about it in the docs. So, you need to test. But I think it should be something similar to file size limit, though I could be wrong.