Right-click the folder and select "Extract All" (Windows) or double-click (Mac) to access the video files.
Language learners often use this series with dual subtitles. Look for .srt files in the folder. To use them, ensure the subtitle file has the exact same name as the video file (e.g., extra_ep01.mp4 and extra_ep01.srt ).
480p (Standard definition, suitable for most devices and language study).
The .zip extension means the episodes and any accompanying materials (like subtitles or workbooks) are compressed into a single folder. How to Use the Zip File
If is a file you have downloaded or are trying to manage, here is helpful text and guidance on how to use it: About the Content Series Title: Extr@ (Extra) Season: Season 1 (S01)
If the .zip file is corrupted, the full series is often available for free on the official Discovery Education YouTube channel (though availability varies by region).
Always ensure you are downloading files from trusted sources. If this file was found on a public forum or unofficial site, scan it with antivirus software before opening to protect your device.