My Maps location: Import - Export Locations
My Maps location got an Import - Export - Synchronization tool for location from a .csv or .kml file (Google Earth file). Click on the menu My Maps Location > Import/Export to get access to the interface.
From this interface you can:
- Import locations from a .csv or .kml file
- Export locations from a .csv or .kml file
- Make an update (synchronization) of the locations from a .csv or .kml file
In some cases, when you export a sample .csv file, all the title of columns are on a cell. So you need to use Text to columns feature in Excel to separate those.