EDIT: I have a 64-bit installation of QGIS but 32-bit Microsoft Office Access drivers. It has been suggested that this is the cause of the problem, which is also indicated in this post: https://www.sigterritoires.fr/index.php/en/access-an-esri-personal-geodatabase-with-qgis-2-18-or-3-0/

I tried installing 64-bit drivers but installer says I have to uninstall Office to do this. If anyone knows a workaround or could verify that the file opens in QGIS with 64-bit drivers that would be great.


I am trying to import the Oceania dataset of the Global Drainage Basin Database into GIS: http://www.cger.nies.go.jp/db/gdbd/gdbd_index_e.html

I have tried:

  1. rgdal::readOGR in R (most recent canonical version, GDAL version 2.2.3)
  2. v.in.ogr in Grass GIS 7.6.1
  3. Data Source Manager in QGIS 3.6.1

All of these result in an error message: "Cannot open data source" / "ERROR: Unable to open data source [filename]" / "Invalid Data Source".

I have followed steps described in previous answers to questions about importing this file format to QGIS on StackExchange and haven't been able to find a solution. Any approach that lets me convert into a more universally accepted format would work.

Running Windows 10.

  • 1
    There are two strong possibilities: 1) It's corrupt 2) It's a 9.x FGDB, unreadable by the FGDB API – Vince Apr 5 '19 at 12:59
  • On the download page reads The file is in ArcGIS Geodatabase (Version 9) format and ogrinfo prints Unable to initialize ODBC connection to DSN for DRIVER=Microsoft Access Driver (*.mdb);DBQ=oceania.mdb for me. – user30184 Apr 5 '19 at 13:17
  • Are you running 64bit qgis and do you have the 64bit odbc drivers installed gis.stackexchange.com/a/138445/2856 – user2856 Apr 6 '19 at 8:03
  • Others have been able to open the files; not corrupt. – user5730487 Apr 7 '19 at 8:08
  • It seems I'm unable to install 64-bit ODBC drivers for Microsoft Access (.mdb) because my employer-provided Microsoft Office version is 32-bit Office 2010. (Or well unable to install without uninstalling Office.) I'll try asking someone with 64-bit drivers to open and save to a less barbaric format, thanks for help. – user5730487 Apr 7 '19 at 8:11

In v2 of Q you can add it in as a File/System vector layer:

enter image description here

I would suspect you can do this in v3 too.

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