I would like to export the attribute table of a shapefile.
I used a cylindric equal area projection and then manually added a column in which I calculated the geometry (area in m2). I like to export the whole attribute table (including the newly added column regarding the area) as a txt. file.
When i do the export of the attribute table (via export data), all columns get exported except the last one with the area.
I took into account that perhaps the name of the column could be too long and tried to change it (at least the alias).
But this had no effect and the column with the calculated area was still not included within the exported file.
What could cause the problem?