VMWare Workstation is a commercial virtualisation software for running multiple operating systems on the same PC without any fancy configuration. Although it is commercial software you can download and use it freely for non-commercial use.
To install VMWare on Linux you will need to register for a free account which can be done by clicking on by visiting:
https://my.vmware.com/web/vmware/login
Once you have activated your account, log in and go to the downloads page, there you will then be able to download the latest version of VMWare player.
Once downloaded you will need to make the file executable. This can be done with the following command.
sudo chmod +x VMware-Player-14.1.1-7528167.x86_64.bundle
Next, you will need to install the dependencies that Ubuntu requires to run VMWare
sudo apt-get -y install gcc make linux-headers-$(uname -r) dkms
Now that you have made the file executable and downloaded the dependencies required, you can now go ahead and install the software with.
sudo bash VMware-Player-14.1.1-7528167.x86_64.bundle
Follow the on-screen prompts in terminal to complete the installation. Once installed you can fire up VMWare. Once run you will see options to either enter a license key or run the free version for non-commercial use. Just select the free for non-commercial use and you should now see the following screen.

That is you now ready to install your first virtual machine. Easy!!!