How to open a large text file so that the computer or application does not freeze?

Question

Text editors

The Wolfram Mathematica application for PC on Linux is distributed as one large .sh file, weighing several GB.

As far as I know, a .sh file is a bash script file.

It became interesting for me to see how a purely script file installs the program. Maybe there the program itself is stored in the form of base64.

I tried to open it on Windows in Notepad ++ - the program hung, I waited 5 minutes and closed it.
Tried to open in git bash in nano - similar.

Actually the question is in the title.

PS
Here is the link to download this big .sh file - https://1fichier.com/?7xwph3onittapxsig3cx
PPS
This is the original file, which once could be downloaded from the wolfram website (in the user panel of your account on the site), now, it seems, the online downloader is being downloaded, and not the entire file.

Answer 1

FAR Manager

Answer 2

Sublime text can help. I opened large projects in it, but I'm not sure about several GB.