Product: TIBCO Spotfire®
Spotfire cannot use a shape file with a .prj file for the projection.
If you have a .shp file where the projection definition is stored only in a .prj file, Spotfire 7.13 and lower cannot use it to draw the map in the defined projection system.
After loading the .shp file and changing the reference coordinate system in the map chart layer to match the .prj projection definition, an error similar to the following is reported.
Reference System Mismatch (Map Layer)
'Map Layer' can only be shown in the coordinate reference system 'EPSG:3857'
Change coordinate reference system
Where the 'Map Layer' and 'EPSG:3857' depends on your analysis.
Spotfire 7.13 and lower does not read .prj files and needs to have the projection definition stored in the .shp file itself. Update Spotfire to 7.14 or higher or use a GIS tool to merge the .prj information into the .shp file. See the Reference section below for examples on how this can be done.