reading a sfl twice -- RPG400-L

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Is there a method for reading thru a sfl twice using READC?  We have a
situation where after we EXFMT, we need to "READC" thru the sfl twice.
I was thinking of using the SFLNXTCHG without an indicator.  We checked the
midrange archives, and there was something about doing a WRITE to the
sfl control rcd fmt between the two READC loops to reposition the sfl to
the beginning.  I'm having difficulty getting this to work.
Thanks for any help.

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