Provide an Excel file with data in three columns with these labels in the first
row:
id, date, address
Output: each row contains the id and associated environmental factors.
Provide an Shapefile (as .zip) or GeoJSON file with polygons, a defined CRS, and a property "id" for each polygon. A k-anonymity of 3 is enforced in output.
Output: correspondence between polygon and entries in Excel.