If you want to convert Google Earth KML files to Excel (XLS, XLSX) or CSV format, you can use these free converter software and online tools.

In January we created a simple KML converter that takes a KML file and produces a csv file that is easily opened with Microsoft Excel. Recently GEB reader David Kettle asked whether it would be ...

Some months back I developed some pyuno code for converting spreadsheets into CSV files from the command line. Pyuno being the Python interface to the OpenOffice runtime. One of the enhancement ...

To convert the other way (Excel to Google Earth), the easiest method is to use Google Earth Pro’s import feature described here. Another more complicated technique can be found here.