The MapInfo Interchange Format imports .MIF files.
MapInfo Interchange Format .MIF files contain boundary objects including areas, curves and points. The objects optionally have attributes (such as color or line style) associated with them.
File Name Extensions
Each MIF file is usually accompanied by a file with the same name, but with the .MID filename extension. The MID file contains attribute information about the objects in the map. This information is imported in the objects' Primary ID and Secondary ID.
Choose the File | Import command.
File Format Chart
File | Import