ICS to CSV Event Exporter

Export calendar events from ICS files to CSV spreadsheets with date, time, and location columns.

Tested tool guide Tested browser tools Checked August 16, 2026

What ICS to CSV Event Exporter does and how it behaves

Calendar downloads in .ics form describe events through iCalendar properties, not spreadsheet rows. The ICS to CSV Event Exporter reads the event records and produces a CSV table with date, time, and location fields for filtering or review. It is meant to expose event data, not reproduce a calendar's visual layout. Recurrence is the important surprise: a single stored event can describe multiple dates, so the number of CSV rows should not be treated as an occurrence count until recurring entries have been checked.

How the result is produced

Event field extraction

The source file is iCalendar text. VEVENT components contain event records, and properties such as DTSTART, DTEND, and LOCATION carry timing and place data when supplied by the calendar. The exporter maps available values into spreadsheet-oriented columns and creates CSV output. Processing occurs entirely in the browser, so the selected .ics file is not uploaded. The result is intended for spreadsheet import, sorting, and filtering.

Date and time interpretation

iCalendar distinguishes DATE values used for date-only events from DATE-TIME values used for timed events. A DATE-TIME can be UTC, tied to a TZID, or floating without a timezone. CSV has no calendar semantics of its own, so review the exported cells before assuming timezone conversion. If LOCATION is absent from the event, the exporter has no place value to recover.

Good uses

Turn a downloaded conference or class calendar into rows that can be sorted by date, time, or room before publishing an agenda or assigning staff.
Review an organization's exported calendar in a spreadsheet to find events with missing locations, inconsistent times, or dates that need confirmation before migration.
Create a tabular event list for reconciliation against a venue schedule, registration roster, or another calendar export using spreadsheet filters and formulas.

Limits and checks

Recurring series and exceptions may be represented through RRULE, RDATE, EXDATE, and RECURRENCE-ID rather than separate VEVENT records. Confirm whether the CSV contains series definitions or expanded dates before counting events.
All-day, floating, UTC, and TZID times can look similar once reduced to cells. Spreadsheet software may also auto-convert imported values, so compare suspect rows with the original ICS file.
CSV is not a lossless calendar representation. Descriptions with line breaks, organizer and attendee data, alarms, attachments, and non-event components may not appear as equivalent columns. Keep the original ICS when those details matter.

Common questions

Does it create one row for every occurrence of a repeating event?

Do not assume that it does. iCalendar can store a whole series in one VEVENT plus recurrence properties, and exceptions can be separate components. Inspect a known recurring event after export. If its expected dates are not individually present, the CSV is useful as a component-level extract, but not as a complete occurrence schedule.

Can the CSV be converted back into the same ICS file?

No. A CSV table may omit or flatten UIDs, recurrence rules, timezone definitions, alarms, attendees, property parameters, and relationships among exception records. Even when the visible date, time, and location match, that is not enough to reconstruct the original calendar faithfully. Retain the .ics source whenever round-trip preservation matters.

References and verification

The behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.