1. Launch AutoCAD. 

2. A new tab named “DWG/DXF Compare” will be created in the ribbon bar. Ribbon bar is at the top of the application. 

3. Click the “Compare” button from the Tool. It will show you a Comparison palette 

4. There are two ways to compare drawing files.  

A. Browse and compare 

• Click “Browse File 1” for selecting the Original file for comparison. 
• Click “Browse File 2” for selecting the changed version of the file. 
• Click “Comparison Folder” for selecting the path at which result of the comparison will be stored. 
• Click “Compare” button to start the comparison, “Cancel” otherwise.

B. Compare existing files.

• You can also compare already opened files. 
• Choose “Select Existing files” and you will see list of open documents. 
• Select any two documents and hit compare button

Rest is same as that of above case.

The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin. You may need to restart the Autodesk product to activate the app/plug-in. To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 7/8/8.1/10) and uninstall as you would any other application from your system.