As

Part of a declaration which specifies a data type, or part of the Open 
statement which specifies a file handle.

Syntax
   symbolname As datatype

   Open ... As #filenumber
   Type ... As datatype

Description
   As is used to declare the type of variables, fields or arguments and is 
   also used in the Open statement to determine the file handle. As is also 
   used with the Type (Alias) syntax, similar to C's typedef statement.

Example
   '' don't try to compile this code, the examples are unrelated
   Declare Sub mySub (X As Integer, Y As Single, Z As String)
   ' ...

   Dim X As Integer
   ' ...

   Type myType
     X As Integer
     Y As Single
     Z As String
   End Type
   ' ...

   Type TheNewType As myType
   ' ...

   Open "test" For Input As #1
   ' ...

Differences from QB
   * The Type (Alias) syntax was not supported in QB.

See also
   * Declare
   * Dim
   * Type
   * Open

