Function that wconverts an expression into a String.
Syntax
      CStr(expression)
Example
Dim strDemo as String
strDemo = CStr("8 St James Street")
strDemo = CStr(Me!txtAddress)
“People have a peculiar pleasure in making converts, that is, in causing others to enjoy what they enjoy, thus finding their own likeness represented and reflected back to them” ~ Johann Wolfgang von Goethe
Related:
CBool - Convert to boolean 
CByte - Convert to byte 
CDate - Convert to Date 
CInt - Convert to Integer (number) 
StrConv - Convert a string - Upper/lower case/Unicode
Nz - Detect a NULL value or Zero Length string.