You can safely ignore the .json files if you only want the images, or use specialized tools to re-integrate metadata. Tips for Success
(e.g., cannot unzip, file appears corrupted, or missing images)? Photos-001.zip
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. You can safely ignore the