I have a GeoJSON file of the country of Haiti with the administrative boundaries for communes (i.e. counties). Here is the file:
That file has a few properties, for example:
( "properties": {
"id_com": 112,
"commune": "Delmas",
"id_dept": 1,
"dept": "West Department",
"shape_leng": 0.242799419022,
"latitude": 18.5543057016,
"longitude": -72.297644435,
"shape_le_1": 0.242799419022,
"shape_area": 0.00222841371629
Now, I want to be able to add a number of new properties, such as area, population and other things. I have 141 different communes and do not want to enter this information manually. Is there a way to work with a GeoJSON file and add the properties, such as with a spreadsheet or other format? Ideally I would have it in a spreadsheet and add in the new properties as columns.