You will likely see .json files alongside photos. These contain metadata (dates, locations, captions) that Google Photos used. How to Extract and View Photos
A Photos-001.zip file is typically the first part of a multi-part archive generated by Google Takeout , Google's tool for exporting user data. When you request a large backup of Google Photos, Google splits the download into smaller, manageable zip files (e.g., Photos-001.zip, Photos-002.zip) to prevent transfer failures. Photos-001.zip
Ensure you have ample disk space, as you will need enough room for both the zip files and the extracted contents. You will likely see