How can I receive an xmodem file using command line?

I'm using *Putty* or *Picocom* to talk directly to a Mobile Modem using AT commands, while doing some experiments that require up/downloading some files on the mobile module's EFS partition. The protocol used to do this is *Xmodem* and it seem that most terminal utilities no longer include/support this. Picocom does as a 3rd party dependence: Picocom can send and receive files over the serial port using external programs that implement the respective protocols. In Linux typical programs for this purpose are: • rx(1) - receive using the X-MODEM protocol * • rb(1) - receive using the Y-MODEM protocol • rz(1) - receive using the Z-MODEM protocol • sx(1) - send using the X-MODEM protocol * • sb(1) - send using the Y-MODEM protocol • sz(1) - send using the Z-MODEM protocol However, none of these are available for Win/Cygwin and I'm not able to find the sources to compile these. (Where are these hosted these days?) **Q: What would be the easiest way to receive Xmodem data using command line?** (What other simple alternatives are there?) I have already looked at the following Unix SE questions: * https://unix.stackexchange.com/questions/111749/how-to-send-a-file-using-xmodem-protocol-from-the-command-line * https://unix.stackexchange.com/questions/239370/send-a-file-over-xmodem-with-payload-size-64 * https://unix.stackexchange.com/questions/56614/send-file-by-xmodem-or-kermit-protocol-with-gnu-screen