You can use these free software and online converter too to convert GPX files to Excel (XLS/ XLSX) or CSV format using your PC.

How to Convert SQLite to Excel. SQLite, a lightweight database suitable for managing small data systems, might power some of your business' applications and websites.

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.

You can then edit the data in the Excel file then upload that and it will convert it back to a KML file. Notes: All styles, folders, etc., are lost in the conversion.