I have an exe file compiled with Delphi 7. I want it to work on OSX (in this case, Mac OS Sierra). Is there any way to compile the exe file as an OSX package and install/run it on OSX?
Delphi 7 can produce only Windows executables. Your only possibility to run the executable on OSX is to run it under the WINE emulator. Whether or not it will run correctly under WINE depends on what the program actually does. You will just have to try it and see what happens.