Hmmm, this file is a bit problematic, as says it will extract out to 5.99 Petrabytes, which requires a bit more space than I have free
Also, it appears to be a raster image. I suspect it is as it has an .rrd file.
I found this explanation on the web:
IGE file extension - Erdas Imagine Large Raster Spill file
What is .ige file?
File type specification:
Bitmap image file type
The ige file extension is related to ERDAS IMAGINE, a geospatial data authoring software, and used for so called Large Raster Spill files.
When creating images requiring more than 4GB of disk space in Imagine a two file dataset is created. The .img contains the traditional superstructure, but the actual image data is kept in a separate non-HFA file format, normally with the extension .ige. This is presumably done to get around the 32bit file offset limitations of HFA format which makes it impossible to address large images.
IGE file extension - Open, view and convert .ige files
So I don't think this is a shapefile as you expected. However, I can't open it to verify this.
Chris Donohue, GISP