Follow these steps to download and install EasyStore onto your Joomla website:

1. Obtain a Valid License: Begin by ensuring you have a valid and active license for EasyStore. Log in to your JoomShaper account and navigate to the Pricing page. Select a plan that best suits your needs and complete the purchase process.
2. Access the Download: Once your purchase is complete, access your JoomShaper account. From your account dashboard, locate the "Downloads" section. Within this section, select "Extensions" and search for "EasyStore." Click on the "Download" button next to the extension.
3. Download the .zip File: Upon clicking the "Download" button, a .zip file containing the EasyStore extension will be downloaded to your local device.
4. Install the Extension: Log in to your Joomla administrator panel. Navigate to System > Install > Extensions. 
5. Upload the .zip File: Click the "Upload Package File” tab and select the downloaded .zip file of EasyStore from your device. 
6. Successful Installation: After a successful installation, you should see a message indicating that the installation was successful, and EasyStore is now ready for configuration.

Note: If you encounter the "file size is too large" error when trying to upload, follow these steps:

1. Locate php.ini: The php.ini file contains various PHP settings, including those related to file uploads. Locate the php.ini file on your server. The location of this file can vary depending on your server setup. Common locations are /etc/php/7.x/php.ini or /usr/local/php/php.ini.
2. Edit php.ini: Open the php.ini file using a text editor (you might need root or administrator access to do this). Look for the following settings and adjust them as needed:
1. upload_max_filesize: This sets the maximum size of an individual uploaded file. Change this value to the desired size (in megabytes). For example, to set a 100MB limit, use upload_max_filesize = 100M.
2. post_max_size: This sets the maximum amount of data that can be POSTed to the server. It should be larger than upload_max_filesize to account for other form data. For example, if you set upload_max_filesize to 100MB, you might set post_max_size = 105M.
3. Save and Close: After making the changes, save the php.ini file and close the text editor.
4. Restart Web Server: For the changes to take effect, you need to restart your web server (e.g., Apache, Nginx, etc.). 

Once EasyStore is installed, you can proceed with the configuration process to tailor it to your specific eCommerce needs.

That's it! You've successfully downloaded and installed EasyStore onto your Joomla website.