CPYFRMIMPF/STMF adding x'00's

I'm trying to move a .csv file from the IFS to a DB file. The output from
CPYFRMSTMF & CPYFRMIMPF has x'00's as the 1st character of each record and
other x'00's added after each character. This is an example of what I see
on the iSeries:

* 5 * / * 2 * 1 * / * 2 * 0 * 0 * 8 * *
00F5006100F200F1006100F200F000F000F8004000

The results are the same for all data types - dates, numbers, text.

This is one of the many CPYFRMSTMF statements I've tried:
CPYFRMSTMF FROMSTMF(DepositDetailAll.csv)
TOMBR('/QSYS.LIB/JJPDTA.LIB/UPDCFILE2.FILE/UPDCFILE2.MBR') MBROPT(*REPLACE)
STMFCODPAG(1252) DBFCCSID(37) ENDLINFMT(*LF)

The file is produced by a 3rd party windows package we use. A report
option in the package produces a list of records in .csv format onto a
mapped IFS drive. I've tried both CPYFRMSTMF and CPYFRMIMPF using every
codpag and ccsid mentioned in this forum. Notepad and Excel read the file
without any problem. Using one of Scott Klement's examples, I wrote an
RPG ILE program to read the IFS file and write it to the DB output file -
no difference either. Using debug I could see the x'00's in the input
file.

I'm sure I can write something to strip the hex zeroes out, but why can't I
just copy the file without them?

TIA
Jack