MapInfo MIF/MID

From fmepedia

MapInfo MIF/MID is a FME Format. Its FME format keyword is MIF

Mid/Mif is the MapInfo Interchange Format. It is one of the most commonly used geographic formats and well supported by almost every GIS product.

A Mid/Mif file physically consists of two files: a .mif which contains the geometry and a .mid which contains the attribute data. Both are in ascii format so they can be viewed with any text editor. The .mid is actually a comma-separated value file. The link between them is rather simple: the first line in the .mid file contains the attributes for the first geometry object in the .mif file.

On Windows-systems, the .mid file is often recognized as a midi (music) file and doubleclicking on it usually opens some application like SoundRecorder or WinAmp, with predictable results.