A family of Microsoft relational database management systems designed for ease of use.
Tom, thanks so much for the reply. There was a missing dynamic link in the database that Access 2013 (which is part of my version of Office 365) uses. I went into Visual Basic, Tools, References and found the "Missing" available reference. I unchecked the "Missing" which was an Web XP reference, closed the database and opened it again. The "left([string],number) works. Thanks for your help