What has replaced Flex? How to work with Flex xml file?

Hi there,

I have been using the older Flex IDE for several years to manage a Flex/Flash file that I would update occasionally and then save it out as a SWF file.

I just recently bought a new iMac with High Sierra and the old Flex app will not run on it. I still have all of my old Flex xml files and everything and just need to open up the main xml file, make a few small changes and then save it out as a SWF file as before and upload it to my site.

I have just subscribed to the latest Adobe CC and want to know what application will allow me to do that now since I no longer see Flex or Flash Builder as being available. How can I make a change to my older xml file and save it as a SWF file with the tools available here? How about with tools elsewhere? Any help and guidance would be greatly appreciated.

Thanks,

Daniel