After you've downloaded the latest package of AcyMailing on our website, log in your WordPress back-end in the menu Plugins -> Add New:
On the top of the page click on Upload Plugin
Uplaod your package in the area:
Finally, after the upload you will have to click on Activate plugin and AcyMailing is installed
If you have other languages installed in WordPress, then AcyMailing will detect them and will automatically install the related language files.
You are now ready to use AcyMailing!