What is .ETA file extension?
File created by Google Earth, a global mapping program; contains a marker for a location in the world specified by longitude, latitude, zoom, rotation, and tilt; provides users with an overhead view of the location.
ETA files have been replaced by .KML and .KMZ files in newer versions of Google Earth. They were originally used for EarthViewer 3D by Keyhole, a company that was acquired by Google in 2004.
You can see a list of software programs here on easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.