Why matlab erase Worksheet Links?

Hello,

I am working with matlab to fill some cells on excel. I have a problem with cells that are linked to other values in worksheet. For exemple:

for Sheet1 Matlab code will fill these two columns:

in sheet2 I already set values based on the result of sheet1:

I am surprised that after running matlab, the links are lost!!

Could you please help on this? how to avoid that matlab erase the links so I dont have to re-enter them each time!?

P.S: I am working with Matlab R2018b.

Thanks!