xml - Working out what character encoding Ariba sends and converting to a proper file

Question

I am downloading a file from the Ariba network using cXML (basically XML) and it has provided an attachment in the content. I have tried every type and tool I can to try and convert the attachment but haven't been able to work out what it is.

The actual file results in a .eml file, which I can download separately using the web interface, so I have the end result as a comparison.

Does anyone recognise this kind of encoding and how to convert it to an actual file. Windows based. Any language is ok, I use Delphi specifically but once I know the process I can adapt.

Content-Type: application/octet-stream; charset=WE8MSWIN1252
Content-ID: <PO_HEADERS@209324921@@@@@173350739@EXT RE RFQ REQUEST N08_18-Feb-22_0294 Please respond within 48 hours.msg>
Content-Disposition: attachment; filename="EXT_RE_RFQ_REQUEST_N08_18-Feb-22_0294_Please_respond_within_48_hours.msg"

xxxxxxxxxxxxxxxxxxxxxxxx>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"xxxxxxxxxxxxxxxxxxxvxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxRxoxoxtx xExnxtxrxyxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx)xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxf)xx#xxxxexxxxxx_x_xpxrxoxpxexrxtxixexsx_xvxexrxsxixoxnx1x.x0xxxxxxxxxxxxxxxxxxx0xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx`
xxxxxx_x_xnxaxmxexixdx_xvxexrxsxixoxnx1x.x0xxxxxxxxxxxxxxxxxxxxxxxxxxx(xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxf)xxxxxxf)xxxxxxxxxxxxxx_x_xsxuxbxsxtxgx1x.x0x_x0xEx0x4x0x0x1xExxxxxxxxxxxxxxxxxxxxxxxxx*xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxx!xxx]xxx>xxx$xxx0xxx&xxx'xxx(xxx)xxx*xxx+xxx,xxx-xxx.xxx/xxxxxxx1xxx2xxx3xxx4xxx5xxx6xxx7xxx8xxx9xxx:xxx;xxx<xxx=xxx?xxxlxxx@xxxAxxxBxxxCxxxDxxxExxxXxxxGxxxHxxxIxxxJxxxKxxxLxxxMxxxNxxxOxxxPxxxQxxxRxxxSxxxTxxxUxxxVxxxWxxxxxxxYxxxZxxx[xxx

Which converts into:

            00  01  02  03  04  05  06  07  08  09  0A  0B  0C  0D  0E  0F  0123456789ABCDEF
    000000  D0  CF  11  E0  A1  B1  1A  E1  00  00  00  00  00  00  00  00  ................
    000010  00  00  00  00  00  00  00  00  3E  00  03  00  FE  FF  09  00  ........>.......
    000020  06  00  00  00  00  00  00  00  00  00  00  00  03  00  00  00  ................
    000030  02  00  00  00  00  00  00  00  00  10  00  00  22  00  00  00  ............"...
    000040  04  00  00  00  FE  FF  FF  FF  00  00  00  00  03  00  00  00  ................
    000050  76  00  00  00  8E  00  00  00  FF  FF  FF  FF  FF  FF  FF  FF  v...............
    000060  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    000070  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    000080  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    000090  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    0000A0  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    0000B0  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    0000C0  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    0000D0  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    0000E0  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    000140  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    000150  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    000160  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    000170  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    000180  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    000190  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    0001A0  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    0001B0  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    0001C0  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    0001D0  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    0001E0  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    0001F0  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  FF  ................
    000200  52  00  6F  00  6F  00  74  00  20  00  45  00  6E  00  74  00  R.o.o.t. .E.n.t.
    000210  72  00  79  00  00  00  00  00  00  00  00  00  00  00  00  00  r.y.............
    000220  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  ................
    000230  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  ................
    000240  16  00  05  00  FF  FF  FF  FF  FF  FF  FF  FF  29  00  00  00  ............)...
    000250  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  ................
    000260  00  00  00  00  00  00  00  00  00  00  00  00  F0  DF  DA  18  ................
    000270  66  29  D8  01  23  00  00  00  00  65  00  00  00  00  00  00  f)..#....e......

Note this is only a portion of the file, the actual file is too long to post here. I am hoping someone can recognise the encoding format with all the x characters.