How to Export a Calendar from Outlook

Exporting a calendar from Outlook sounds straightforward — and often it is — but the process varies depending on which version of Outlook you're using, where your calendar data lives, and what you plan to do with it afterward. Understanding those differences upfront saves a lot of frustration.

Why Export an Outlook Calendar?

People export Outlook calendars for several reasons: switching to a new email client, backing up appointments before a system migration, sharing a calendar with someone using a different platform, or archiving old events. Each use case may point toward a different export format or method.

The Two Main Export Formats

When exporting from Outlook, you'll typically encounter two file types:

PST files are Outlook-native. They preserve all calendar data, including recurring events, reminders, and categories, and are the right choice when you're migrating between Outlook accounts or creating a complete local backup.

ICS files are the universal standard for calendar data. Virtually every calendar app — Google Calendar, Apple Calendar, Thunderbird — can read an .ics file. If you're moving away from Outlook or sharing with non-Outlook users, this is the format to use.

How to Export a Calendar in Outlook for Windows (Desktop App)

This applies to Outlook versions bundled with Microsoft 365 or older standalone Office installs.

To export as a PST file:

1. Open Outlook and go to File → Open & Export → Import/Export
2. Select Export to a file, then click Next
3. Choose Outlook Data File (.pst) and click Next
4. Select the calendar you want to export from the folder list
5. Choose a save location and click Finish
6. You can optionally set a password on the file at this step

To export as an ICS file:

1. In the calendar view, right-click the calendar name in the left panel
2. Select Save Calendar
3. Choose your save location and adjust the Date Range and Detail level
4. Click Save

The detail setting matters here — Full details includes notes and private information, while Availability only strips out specifics. Which one you choose depends on who will be receiving the file.

How to Export a Calendar in Outlook on Mac

The Mac version of Outlook has a slightly different interface.

1. Open Outlook and switch to Calendar view
2. Control-click (or right-click) the calendar in the sidebar
3. Select Export
4. Outlook for Mac exports directly to .olm format (its Mac-native equivalent of PST) — or in some versions, you can choose .ics

⚠️ Note: The .olm format is Mac-only. If you're moving data to a Windows machine or a non-Microsoft app, look for the .ics export option instead. Not all versions of Outlook for Mac offer both — this depends on your current build.

Exporting from Outlook on the Web (Outlook.com or Microsoft 365 Web)

The web version of Outlook has more limited export options compared to the desktop app.

1. Go to outlook.live.com and open Calendar
2. Click the Settings gear icon → View all Outlook settings
3. Navigate to Calendar → Shared calendars
4. Under Publish a calendar, select the calendar and choose a detail level
5. You'll get a link — from there you can download the .ics file directly

This method is technically a publish-then-download workflow rather than a direct export, but it produces a valid .ics file compatible with other calendar platforms.

Key Variables That Affect the Process 🗓️

The steps above cover the general path, but several factors shape the actual experience:

• Outlook version: Older versions (Outlook 2010, 2013) have slightly different menu structures. The Import/Export wizard is consistent, but navigation labels vary.
• Account type: Calendars tied to an Exchange or Microsoft 365 account behave differently than those in a local PST or personal IMAP account. Shared or delegated calendars may require specific permissions before they can be exported.
• Calendar size: Large calendars with years of data and many recurring events can produce sizeable PST or ICS files. Some third-party apps have import size limits.
• Recurring events: ICS exports generally handle recurring events well, but complex recurrence rules (custom exceptions, attendee data) sometimes don't transfer cleanly to other platforms.
• Private events: If exporting to share with others, the detail level setting determines how much private appointment information is included.

What Happens After Export

A PST file can be re-imported into Outlook via File → Open & Export → Import/Export → Import from another program or file. It's a complete, self-contained archive.

An ICS file can be dragged directly into Google Calendar, Apple Calendar, or uploaded through those platforms' import tools. Most calendar apps support this natively.

If you're doing a full migration rather than a one-time export, it's worth checking whether the destination platform supports CalDAV sync — which gives you a live, ongoing connection rather than a static snapshot export.

The Part That Varies by Setup

The mechanics of exporting are largely the same across Outlook versions — but what format makes sense, which calendar is worth exporting, and where that data goes next depends entirely on your environment. A corporate Exchange account, a personal Outlook.com calendar, and a local PST-based setup each present different constraints and options. The right path forward depends on which of those describes your situation. 🔍