CRYPTNOTRUNC, Not positioned at file start or EOF. TRUNCATE disallowed on the encrypted file ffff

Run Time Error: An OPEN or USE command specifies a TRUNCATE deviceparameter on a encryption-enabled device which is not positioned at the end of a file.

Action: When using encryption, because encryption algorithms maintain state as they process text, a TRUNCATE is only permitted at the beginning or end of a file, the former deleting the entire contents, and the latter effectively a no-op.

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