Illustrative example. The dates and amounts below are provided for practice.
A spreadsheet review can help find inconsistent titles, but the CSV should not be treated as a complete recovery backup.
Save a yearless Birthday titled “May birthday” for May 6 and a one-time Family Event titled “Reunion, west branch” for July 10, 2027. Select both, choose Selected dates, and export CSV.
Check the fields, not just the display
The birthday uses separate month and day columns and has a blank Birth Year. The reunion has the ISO date 2027-07-10. A title containing a comma is quoted so the comma remains inside one cell.
The spreadsheet application may reinterpret date-looking values. Import the ISO date column as text if retaining its exact representation is important.
Keep notes and backup scope in mind
CSV can include event notes. Review them before sharing. It does not preserve celebration plans or provide a restore path into this site. Use All dates JSON for a complete local backup.
That date calculation is independent of how a spreadsheet formats the cells.
If an event title begins with a formula-like character, the exporter adds a protective apostrophe. Inspect that behavior rather than removing it automatically from an untrusted file.