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I have a shp with size 673'476 KB, with shx size 192'422 KB (as shown in the picture below). This file is with points.

Is there any way that can I reduce the shx file size using QGIS?

enter image description here

PolyGeo
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bluecat
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    The .shx file is fixed-width (with length (100 + 8 * nrecs)) and required. See https://gis.stackexchange.com/questions/348557/how-does-a-shapefile-2gb-limit-equate-to-70-million-points – Vince Apr 10 '21 at 19:45
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    If the singleton points share common attributes, you could convert them to mulitpoints, which would reduce the record count, and therefore the size of both the .shx and .dbf (you might get a little reduction in the .shp, or it might increase a bit, due to the cost of storing the envelope, depending on the vertex density in the multipoints). – Vince Apr 10 '21 at 22:35

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