No.
for instance, the shortkey "ctrl + up or down arrow" works.
But the "ctrl + left or right arrow" or "ctrl + shift + arrows" do not... I
don't understand why this happened. Could it be some excel file I've opened
that reconfigurated it? it might seem ridiculous, but this kind of shortcuts
is really useful!

"Bob I" wrote:

CTRL key fail?

keyboard shortcut troubleshoot wrote:

I don't know why but the following shortcuts stopped working:

ctrl + shift + arrows
ctrl + left or right arrow
and few other combinations...

Could you know how to solve this problem and recover all this shortcuts?