Code to delete value in cell in Spreadsheet Loader

Hi there,

Does anyone know what the code is you populate in a cell that you want current value appearing in said cell to delete upon upload on spreadsheet loaders without creating a separate delete spreadsheet?

Situation would be we would use the create and update spreadsheet loader to update employee assignment data record values effective eg 1 July 2023 but at the same time would need to delete certain values in other fields.