I used the same utility you found and got the same results, which is what triggered the exchange with the developer of the PHP shapefile library. I will pass on this information.
On 10/15/2025 2:44 AM, Andrea Giudiceandrea via gdal-dev wrote:
Hi all,
I've also inspected the provided ESRI Shapefile layers and it seems to me they are perfectly compliant to the Shapefile technical description https://downloads.esri.com/support/whitepapers/mo_/shapefile.pdf for PointZ PolyLineZ Shapefile types and are correctly displayed even using ESRI ArcMap 9.3.1.
The ArcMap tool to validate the geometries and the ShapeChecker utility, recommanded by ESRI, didn't find any error in such layers.
David, what online utility have you used? I've uploaded driveway_points[.shp|.shx|.dbf] to https://www.litchiutilities.com/shapefileToCsv.php and while it generates 2 warning messages* it also nevertheless creates the requested CSV file.
Regards.
Andrea
* Warning: unpack(): Type d: not enough input, need 8, have 0 in /home/wesbarri/litchiutilities.com/php-shapefile-3.4.1/src/Shapefile/ShapefileReader.php on line 317
Warning: current() expects parameter 1 to be array, boolean given in /home/wesbarri/litchiutilities.com/php-shapefile-3.4.1/src/Shapefile/ShapefileReader.php on line 317
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