'Examine all file extensions' option does not enable Microstation files with non DGN extensions to be listed

Last Published: April 25, 2020


Microstation files can be created with file extensions other than DGN. These files can be recognized by ArcGIS by checking on an ArcCatalog option found under Tools > Options > CAD tab > Examine all file extensions.

At version 9.0, checking on this option does not allow the files to be listed.


This is a known issue.


Place a recognized CAD format file with a standard DWG, DXF or DGN extension in the same folder as the other Microstation files. Refreshing the directory now lists the additional Microstation files.

    Article ID:000007227

    • ArcMap 9 x

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