Hi @andersenyunan, does your data always contain brackets of the form shown? And can such brackets appear anywhere else in the data? If it is always in the format shown, then I’d think the regex splitter node might be more suitable for your needs, but I think we need a little more information.
That said, what config are you currently using for splitting the cell? It may be that there is a simple solution to what you need to do, if we know what you are currently doing.