How do I add
.e00 data into my QGIS project?
I was able to solve adding an e00 file to qGIS via a roundabout route - as @MappaGnosis mentions, it is/can be a compressed format. I originally tried following this route mentioned in another question:
ogr2ogr -f "ESRI Shapefile" -a_srs EPSG:4326 pa_rivers MAJRIVRS.E00
which produced this error:
ERROR 4: This looks like a compressed E00 file and cannot be processed directly. You may need to uncompress it first using the E00compr library or the e00conv program.
So I found the page for e00compr, grabbed the source, uncompressed it and (note: I'm on a Mac with Xcode, command line tools, etc. installed - ymmv)
make make install cp e00conv /usr/local/bin/e00conv
and then I was able to
e00conv MAJRIVRS.E00 major_rivers.e00
after which the following command
ogr2ogr -f "ESRI Shapefile" -a_srs EPSG:4326 pa_rivers major_rivers.e00
saved a bunch of files into a directory pa_rivers... unfortunately the coordinates in the shape file created didn't agree with my other data, but that's another question ;-)
I assume you mean .e00, which is an ArcInfo ASCII Coverage format. In which case, QGIS can read this natively, so simply add it as a layer like any other vector format.
An interchange file contains all coverage information and appropriate INFO table information in a fixed-length, ASCII format (from ESRI Help website)
The .e00 format can be compressed which is maybe why it appears to be binary in some cases. Also note that ESRI recommend using a binary format for a raster and not the .e00 format for efficiency.