exported kml won't open in MEL

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Export MyTracks file to .kml file on android phone
2. Copy said file to Windows computer
3. Try to import said .kml file into Maps Engine Lite

What is the expected output? What do you see instead?
I exported some tracks to kml, and then I transferred them to my laptop, and I 
noticed that the files are not .kml but .kmz.  Why are they .kmz files instead 
of .kml as it says when I export them?  I tried to import these files into Maps 
Engine Lite and it says that they are in the wrong format, even though MEL now 
allows the importing of .kml files.  

What version of MyTracks are you using? On what version of Android? On what
phone?
MyTracks v. 2.0.7; Android 4.4.2; Samsung Galaxy S3.  

If possible please provide a log by uploading here.
Detailed instructions can be found here:
http://code.google.com/p/mytracks/wiki/HowToReportErrors

Please provide any additional information here:

Original issue reported on code.google.com by charles....@gmail.com on 26 Jun 2014 at 5:33

[GoogleCodeExporter]

kmz is a zip file containg the kml file plus any photos (from photo markers you 
might have inserted). Try unzip the kmz file and import the kml file inside.

Original comment by jshih@google.com on 26 Jun 2014 at 6:34

• Changed state: WontFix

[GoogleCodeExporter]

What is the recommended way to unzip a .kmz?

Original comment by charles....@gmail.com on 26 Jun 2014 at 8:13