Importing & Exporting CSV Files

Topo Maps+ imports CSV files as data layers, keeping the file's columns as attributes, and exports data layers as CSV files.

CSV file format

• The file must include a Location column, a Geometry column, or both Latitude and Longitude columns.
• A Location or Geometry value can be a single coordinate pair or a list of pairs. If a list's first and last coordinates match, it's imported as a polygon.
• If the file includes a UUID column, imported rows merge with existing objects that have the same UUID. That lets you export a layer, edit it in Numbers or Excel, and re-import it to update those objects.

How to import a CSV file

1. Tap the Add button in the toolbar, then tap Import Data.

   

2. Select your file and tap Open, then tap Import. The new data layer is named after the file.

   

3. Select your file. Topo Maps+ analyzes it and shows the attribute schema it found.

4. Name the data layer and tap Import CSV.

   

To view or edit the new data layer, tap the Maps button in the toolbar and scroll down to Data Layers.

How to export a data layer as CSV

1. Tap the Maps button and, under Data Layers, tap the gearsettings icon on the layer (or tap and hold it, then tap Settings) to open it.

   

2. Tap Export.

   

3. Tap Export CSV File.