How to Export Zimbra Calendar to ICS? Complete WalkThrough

Written By Amit Patra

Approved By Anuraag Singh

Modified On May 4th, 2026

Reading Time 5 Minutes Reading

Overview: Are you also the one who is eagerly waiting for the solution to export Zimbra calendar to ICS. Then, your wait is over! From here, you will get to know different methods to migrate your Zimbra emails.

The work sometimes demands navigating calendars between different formats or to any new email client. Here, users need to be careful while using the Zimbra desktop. If you want to access calendars in various email clients like Outlook, or Google/Apple calendar, then you need to have a standard file format in order to open it.

Talking about ICS, it is also known as (iCalendar). It is a universal file format to transfer your calendar data quickly. It includes event, date, time, and remaining details. So, you can import it to different platforms without losing the data.

In addition to that, we have come up with steps to export Zimbra contacts to CSV. Before moving forward, let’s cover the reason part first:

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Why to Migrate Zimbra Calendars?

Users often need to export Zimbra calendar to ICS format for different reasons. Let’s uncover those points:

ICS files mostly work with Outlook, Google Calendar, & Apple Calendar
Easy to move calendar data when switching from Zimbra platform
You do not miss important events and schedules
Keeps meetings and reminders in a single file
You can open ICS file on any email client application
Ensure proper calendar management throughout
It is good in terms of taking backup
Basic method to share calendars without account control
No need for the internet to open stored ICS files

Professional Way to Export Zimbra Calendar to ICS – Secure your Data

When we have massive data with us to migrate Zimbra calendar files. It takes longer, and also sometimes it gets hard to keep control or filter only what you really need. As a result, users go with any incomplete methods. The best way is to use SysTools Zimbra Converter to handle the bulk calendar data effectively and provide you the output in an appropriate manner without any extra steps. This saves time and guarantees that all your events, notes, journals are exported correctly as it was.

Download Now Purchase Now

Key Aspects:

Batch convert any number of calendars and mailboxes
The details of event, reminders are correct
Support ICS, PST, PDF, and EML formats too
Export filtered by date or folder of data only
No technical skills required at any level

Tool Steps to Migrate Zimbra Calendar Files Safely

1. Download and open the tool on your PC.

run zimbra to vCard tool

2. Press Add File/Add Folder to import your data of Zimbra.

select add files or folders

3. Select Browse and load a TGZ file for conversion.

import zimbra tgz file

4. Once you add it, preview to check all your emails.

preview the data

5. You can move your files with export or export selected options too.

select export option to import zimbra emails to thunderbird

6. Choose ICS from the export options to save in that format.

select MSF

7. Click on the Export button to get started.

select PST

8. When done, a message will confirm the process, click OK to complete.

select PST

Export Zimbra Calendar to ICS – Manual Approaches

You can also try manual ones to import a small amount of files. For that, these methods ate very useful.

#1. Export Zimbra Calendar Through Zimbra Web Client

Follow this method within your system to import your Zimbra files. Have a look into this:

Log into your Zimbra account with the help of browser
Next, click on Preferences from the top bar
Locate Import/Export in the left panel and open it
Find the Export section on your screen
Choose Calendar as what you would like to export
Now, select the calendar folder that you want to use
If necessary, specify a date range in order to only export selected events
Just cross check that your file is set as ICS
Press the Export button to begin
At the end, download and save your files on your system

#2. Migrate Specific Calendar Events

It is basically for the users who want only particular events. Go through these easy steps to export Zimbra Calendar to ICS.

Firstly, launch Zimbra Calendar and choose the event
Confirm the event details twice to have correct files
Right click on the more options on the event part
Choose Forward as iCalendar option
Download file from Email Window itself
Now, save it to where you want

Drawbacks of Using Manual Solution

These above methods come with certain limitations. Know this to ensure before you go manually.

No bulk feature available
Time taking steps
No filter option
Chances of losing data
There is no support for corrupted TGZ files

End Note

If you want to export Zimbra calendar to ICS file, then there are various ways of doing it. Firstly, you can do this manually if you have only a few entries, although it becomes time-consuming and difficult to process large calendars. Therefore, you can go with our desired solution to get your job done in quick times. Also, maintain your data while having the conversion process. Rest, you can go through the link mentioned above to know better about its applications.