When exporting data to a CSV from the table widget in experience builder, X and Y columns are added but the coordinates look to be nonsense. What coordinate system is this? It doesn't look to be standard WGS84 or Web Mercator. The actual location of the points is in the UK and they display in the correct location both on the experience builder webmap, and when I bring the layer into ArcPro.
| x | y |
| -515889 | 7718968 |
| -515721 | 7718480 |
| -515797 | 7717138 |
| -514981 | 7719600 |
| -515037 | 7719787 |