Format reference
ICS Format Hub
ICS (.ics) files use the iCalendar format to encode events, schedules, and recurrence rules for calendar applications. Use sample .ics files to validate calendar imports, timezone handling, recurring events, and scheduling interoperability.
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text/calendar
Related Formats in Document
ICS Related Formats
Format Strategy Links
ICS Format Guides
Implementation Notes
ICS Implementation Notes
Use the manifest endpoint for deterministic fixture selection in CI, then validate MIME/type detection against actual parser output.
If this format appears in multiple categories, prefer category-specific hub pages to keep test assumptions aligned with real usage.