A Google Earth file, a virtual Earth mapping program in Keyhole Markup Language (KML) that has been compressed (zipped), becomes a KMZ file. Users may need to unzip the KMZ to extract three-dimensional architectural meshes for editing with CAD software. KMZ is supported by a wide range of archive unzipping programs, such as 7-Zip, WinRAR and PeaZip.
PeaZip
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Step 1
Download and install PeaZip from Sourceforge.
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Step 2
Open PeaZip. Click "File." Select "Open Archive."
Step 3
Select the KMZ from the Explorer window. Click "Open."
Step 4
Select the file(s) you wish to extract. Click on the "Extract" icon. Choose a folder destination. Click "OK."
WinRAR
Step 1
Download and install WinRAR from the Rarlabs website.
Step 2
Open WinRAR. Click "File." Select "Open Archive."
Step 3
Select the KMZ from the Explorer window. Click "Open."
Step 4
Click "Extract To." Choose a folder destination, and click "OK."
7-Zip
Step 1
Download and install 7-Zip from the 7-Zip website.
Step 2
Right-click on the KMZ to open the drop-down menu.
Step 3
Select "7-Zip." Click "Extract Here."