Es ist eine programmbeschriebene Datei!

The name operand must be the name of a file or record format. A record format
name is allowed only with an externally described file. A file name is required
with a program described file, and the data-structure operand must be the name of
a data structure. The record is written directly from the data structure to the file.
You cannot specify the data-structure operand if name is a record format name.
The result field must be a data structure name.