The ERMapper map format is implemented by Dinamica EGO as follows:

• Maps are represnted using two different files:
  • The header file uses the extension “.ers” and stores the map metadata.
  • The data file does not use an extension and stores the cells from all map layers interlaced by lines. Compression is never used.

• Due to format limitations, maps whose cells are represented using 1 bit per cell are written using 8 bits per cell, unsigned.

• Blanks in layer names are automagically replaced by “_” (underscore) when reading maps.

• It is not possible to read or write maps bigger than 4 Gbytes (4294967296 bytes) even on Dinamica EGO 64.