How do I prevent org-mode from executing all of the babel source blocks?

Question

I have an org file with lots of babel source blocks in it that only need to be re-executed when the code is changed.

How do I prevent org from executing all of the block

Answer 1

After placing the following:

# -*- org-export-use-babel: nil;-*-

at the top of the file, and executing C-c C-c, It didn't work for me. The variable's value is not set accordingly.

But the following:

#+BIND: org-export-use-babel nil

with an application of C-c C-c works as expected.

I found the answer here: http://joelmccracken.github.io/entries/org-mode-specifying-document-variables-and-keywords/

There are probably some changes in emacs 26, which I'm using.