Deleting Middle Initials In A Spreadsheet

I just bought a database and I would say at least 20% of the names in the database have an initial after the first name. I need to have a clean first and last name list. Is there a formula that can delete the initials? I am working on a variable data print project that uses their first name in the message so I cannot have their middle initial.

So like in one example her first name is listed as Susan F. I want it to just be Susan. Another example is T. Jones as a last name, I want it to be just Jones.