In QGIS, I am trying to add some non-spatial data (in .xls file) that I want to use to join to some spatial data.
Adding the file, either from 'add vector' or dragging file onto project I get the above error.
Running QGIS v.1.7.4 on Windows.
Reading the documentation, this is supposed to work as of v1.7.
Wondering what I am doing wrong.
Also, tried to do a simliar thing with an MSSQL to a non-spatial sql table with the same error.