Open
Open {
[Dataset | External] {ext-filename | %variable}
| [External] {Terminal | %variable}
}
For {Input [Output] | Output [Input] | InOut}
[Password {value | %variable}]
(C)Open[C] [File | [Perm | Temp] Group]
{name [At {location | %variable | =}] | %variable}
[Password {value | %variable}]