You can simply Install and Active this Plugin in 2 different ways after Logging in to WordPress Dashboard:

1. Click on the Plugins shown in your Dashboard
2. Then go to Add New option
3. Search Blockspare in the search bar
4. Then, Install and Activate it

OR

1. After Add New option by clicking Plugins in the Dashboard
2. Click on the Upload Plugin button shown top of the left side
3. Choose the zip file that you have downloaded from Blockspare
4. Then, Activate the Plugin