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You can export Douban collections to CSV without logging in by using the Frodo public API with HMAC-SHA1 signatures. The workflow requires only your DOUBAN_USER ID setup to generate separate per-type CSV files for books, films, music, and games.

Yes, you can sync Douban collection updates daily via RSS incremental sync. This feature runs without login and automatically handles delisted items, updating your existing CSV files instead of performing a full export each time.

Yes, the Douban CSV export handles Excel encoding issues by outputting files with UTF-8 BOM. This ensures proper character display for Chinese titles and metadata when you open the generated 书.csv, 影视.csv, 音乐.csv, and 游戏.csv files in Excel.

The best way to backup Douban movie and book collections is a full export via the Frodo API. It uses robust pagination and rate limit enforcement to safely extract all your user collections into portable CSV records for analysis and sharing.

The Douban API export handles delisted items and rate limits through robust error handling and pagination logic. It enforces API rate limits during the full export and RSS incremental sync workflows to ensure consistent results without connection drops.