Text mode opened file and line feed

Good morning:
I have open a file in text mode and i need to send an OD0A hexadecimal characters to another system in each line, if i try to put 0D0A it makes a double line feed and if i only put 0D it doesn´t interpretate 0D like hexadecimal characters, i know that if i open the file with binary mode it would be very easy, but it is a code shared with another programs, so i rather not to change. Does anybody has made that in text mode in any occasion?.
Thanks in advance
Regards

i have open the file in binary mode

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