Open a Linux terminal and enter commands in blue.
$ sudo apt-get update; sudo apt-get upgrade <enter>
Install gdebi:
$ sudo apt-get install gdebi <enter>
Download the latest version of CrossOver from https://www.codeweavers.com/products/crossover-linux/download/
Use gdebi to install CrossOver:
$ sudo gdebi ~/Downloads/crossover_15.1.0-1.deb <enter>
where crossover_15.1.0-1.deb is the latest file downloaded from the above URL.
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