Found solution! I'd been staring at it but didn't understand .... left-click on the four files and compress them, not compress the folder they're in. lolz I'm having the same problem 😞 In the ArcGIS online map maker. I don't have any kind of paid subscription. Using Mac OSX 17.4 Safari 5.1.7 and attached zipped shape file it includes a .dbf, .prj, .shp and .shx all with the same name. It does not have subfolders. It does not have anything else in it. hmmm ... Any tips?
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