I've been trying to download the latest version of Adobe Flash player on the latest version of OS X. The instructions say the file should be a .dmg, however, every time I've tried to download the installer I've gotten a .dmg.mdlp file. When I open the file that should be the installer the script for the installer tries to open up in Matlab. I've tried saving the file as a .dmg and that doesn't work. Does anyone have any suggestions?
If you have Matlab installed it could be set as the default program for opening DMG files. This article, osx - Why is Adobe Flash Player downloaded as a ".dmg.mdlp" file? - Super User, has some information on changing the 'open with' program.