Click Close when the installation is complete.Click Continue and follow the on-screen instructions to install.If you get an error that the file can't be opened because it's an unknown developer, wait about 20 seconds, drag the file to your desktop, and then hold the Control key as you click the file to open it. A Windows and Office activator using HWID / Ohook / KMS38 / Online KMS activation methods, with a focus on open.Open your Downloads folder and double-click the file called something similar to Microsoft Office-Installer.pkg.If you haven't yet purchased Office, click Buy Office at the top-right corner first, and then follow the on-screen steps to make your purchase.If you don't see this option and are signed in through a business account, go to instead. This is usually your Microsoft account, but if you got Office through your employer or school, you may need to use that account info. Mehtod 1: sudo apt-get install php7.4-zip sudo /etc/init.d/apache2 restart or sudo service nginx restart Mehtod 2. Install PHP zip Extension on Ubuntu 20.04. Put the following code in a TXT file and save as 'file.cmd' then run the cmd file as administrator. If you're not signed in, click Sign in to sign in with the account associated with Office. Office 2019 Activation without Product Key using CMD. X Trustworthy Source Microsoft Support Technical support and product information from Microsoft. If you haven't already done so, you'll need to install and redeem Microsoft Office before you can activate it.