What are MapInfo (Mid/Mif) and ESRI Shape Formats?
Mid/Mif (the MapInfo Interchange Format) and ESRI Shape (also known as Shapefile) are two of the most commonly used geographic formats and are well supported by almost every GIS product, including Prospex. A Mid/Mif file physically consists of two files: a .mif which contains the geometry and a .mid which contains the attribute data. Shapefiles spatially describe points, which could for example, represent water wells, lakes and rivers respectively. Each item may also have attributes that describe the items, such as the name. A Shapefile physically consists of several files.