Takeout knowledge base
Repair the export with evidence, not guesses.
These guides explain what Google exports, which metadata destinations actually read, and how to keep an immutable source while you verify the result.
Start with an immutable source
Keep every original Takeout ZIP. Select all numbered parts as one job, inspect the preflight result, and write repairs to a separate output folder.
Verify before importing
Compare counts, inspect failed and unmatched files, and test representative dates, locations, videos, and dynamic photos in the destination application.