It has occurred several times that Mathematica notebooks seem to get corrupted probably by cloud services (happened with dropbox, NutShare). Sometimes, an entire cell or chapter/section become NULL
, and sometimes, they look like the following (all codes are present but scrambled into some output-like text)
I wonder how to fix them and how to avoid?
.nb
Notebook file I used to do the computation, and I have never told Mathematica to make an output (since I don't need one). $\endgroup$ – Lelouch Aug 21 '20 at 0:29