How to Insert a NULL Value? | MrExcel Message Board small business, medium business, businesses, partner, channel sales, carrier, home, residential, marketing, VoIP, online marketing, internet marketing, communications, telecommunications Aug 10, 2008 · I've searched many posts to do with Null values but can only find information on checking for a Null value, like ISBLANK(). But, I've not been able to find any …