Update an existing value to Null in Oracle via FBDI

HI all,

I have thousands of rows that were converted improperly (specifically, there is a value that was uploaded in the initial data import when it should have been NULL).

I am filling out the FBDI to correct these rows, but am unsure how to denote a cell as UPDATE TO NULL, since normally in FBDI, a blank cell means ignore this and retain the existing value in Fusion.

I have found the other posts referencing #NULL as what to place in the FBDI , but that doesn't seem to be universally the answer.
Can anyone help point me in the right direction? Thanks in advance!