Let's assume the string is "Mr A Smith"
Left([aName],InStr(1,[aName]," ",0))
= "Mr ", because it finds the first space and returns everything before it.
ReverseString(Left(ReverseString([aName]),(InStr(1
,ReverseString([aName])," ",0))-1))
Firstly we reverse the string so we get:
"htimS A...