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How to convert ICS to CSV
ICS (iCalendar) is the standard format for calendar exports from apps like Google Calendar, Apple Calendar, Outlook, and Calendly. An ICS file contains structured calendar event data: titles, start and end times, descriptions, locations, recurrence rules, and attendees. Converting ICS to CSV maps each event to a spreadsheet row with columns for date, start time, end time, summary, location, and description, giving you a flat table you can sort, filter, or feed into any tool that accepts CSV.
BoltConverter processes your ICS file on our servers, parses each VEVENT block, and maps the standard fields into CSV columns including summary, start, end, location, description, and UID. After conversion, both files are deleted immediately from our servers.
Upload your ICS file
Click the upload area or drag your .ics calendar export file onto the page.
Events are parsed and mapped
BoltConverter reads every VEVENT block in the ICS file and maps standard fields like SUMMARY, DTSTART, DTEND, LOCATION, and DESCRIPTION to CSV columns.
Download the CSV
Click Download to save the spreadsheet-ready CSV. Open it in Excel or Google Sheets to review, filter, or analyze your calendar events.
Frequently asked questions
Which fields are included in the output CSV?
Standard fields include: Summary (event title), Start date/time, End date/time, Location, Description, UID, and Status. Fields that are not present in an event are left blank in that row.
Are recurring events expanded into individual rows?
Recurring events are typically included as a single row with the recurrence rule (RRULE) in the output. They are not automatically expanded into individual occurrences.
What time format are dates exported in?
Dates are exported in the ISO 8601 format as stored in the ICS file (e.g., 20261201T090000Z for a UTC timestamp). You can reformat them in Excel using date formatting tools.
Can I convert a calendar export from Google Calendar?
Yes. Google Calendar exports standard ICS files from Settings > Import & Export. BoltConverter can parse those exports correctly.
Are my calendar files stored on the server?
No. Both the uploaded ICS file and the resulting CSV are deleted from our servers immediately after you download the result.