This n8n workflow automates the process of downloading a ZIP file, extracting multiple binary files, and encoding each file into Base64 strings using a custom Code node. It is designed for scenarios where multiple files need to be prepared for API uploads that require Base64 encoding, especially when batch processing is necessary. The workflow begins with a manual trigger, downloads a ZIP archive from a specified URL, unzips the archive to access individual files, and then processes each file through a JavaScript Code node. The Code node utilizes custom JavaScript to convert binary data into Base64 format, making it suitable for cloud storage, API uploads, or data transformation tasks.