

Find a M1 file in question in Mac OS Finder and double click on it to launch the corresponding application.Install the application you found and check if it can open M1 file.If you don't know the application which function as M1 file opener then try to search for "M1 wiki", "application to open M1 file" or "open M1 file" queries in the search engine you like.


If you know the application which can open M1 file then run it and see if there is a File->Open main menu option in the application.If a M1 file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.Find a M1 file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
