: You must have all subsequent parts (part2, part3, etc.) in the same folder to successfully extract the contents. WinRAR or a similar utility is typically used to reassemble them into a single installer.
The file is the first volume of a multi-part compressed archive containing the 64-bit installation media for Autodesk's AutoCAD 2016 software. Key File Characteristics
After extracting the files, look for the Setup.exe or the main .exe file to begin the process. You will typically be prompted to enter a , which can be found in your Autodesk Account .
: Once extracted, the archive usually contains a main executable, such as Auto_CAD_2016_English_Win_64bit.exe , along with necessary support folders. Technical Requirements (64-bit)
: Windows 7 SP1, Windows 8.1, or Windows 10 (with Service Pack 1).