Redbex supports the display of two popular CAD file formats .DWG and .DXF. Since those CAD file might hold references to other files (e.g. bitmaps, other CAD files) the CAD Map File Set type may consist of a single DWG or DXF or might be a collection of files including exactly one dwg or dxf file.

When validating if a set of given files represents a TIFF World File format the Application Server checks if exactly one file with extension .TIFF and exactly one file with the extension .TFW must be present, no other files are allowed in the Map File Set.