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Import Outlook 2007, 2010, 2013 Calendar to Office 365 – Complete Guide

Published By Deepa Pandey
Ashwani Tiwari
Approved By Ashwani Tiwari
Published On March 29th, 2024
Reading Time 7 Minutes Reading
Category Office 365

Summary: Do you want to access your Outlook Calendar from Office 365 account and facing difficulties? If the answer is yes then, no need to worry now as we have come up some rapid, simple and dependable methods to import Outlook Calendar to Office 365.

import outlook calendar to office 365

On one side when technology is upgrading gradually, it is still a big challenge for users to move Outlook calendar to Outlook 365. Without any doubt, Microsoft Outlook is one of the widely used platforms. It is used in both small as well as large enterprises to meet business requirements. However, the popularity of Office 365 is also unavoidable. It comes with many handy applications, which are very familiar among users like PowerPoint, MS Word, Outlook, Excel, etc. Therefore, sometimes users may wish to migrate Outlook calendar to Office 365.

Let us Take a Real Example

“I have been using Microsoft Outlook for a very long time, while my father is using Office 365. Sometimes, due to the unavailability of an internet connection, it becomes impossible for me to access the older data which includes calendars. However, my father can use the data at any time even from any device. Apart from this, he can even use the calendar events and updates anytime. In our area, internet connectivity often creates hurdles in between work. This is the reason I am thinking of migrating Outlook Calendars to Office 365. Now, the challenge I am facing is how to add Outlook Calendar to my Office 365 account. I have searched for a reliable method for the same, but all my efforts have been in vain. Now, please guide me on the same to execute this task simply and quickly.”

As we have seen here, it is not as easy to perform this task, as it seems to be. This is the reason, behind introducing the relevant methods for the same. However, before that let us try to learn some more reasons behind this migration.

Also Read – Transfer Outlook contacts to Office 365

Factors Responsible for Importing Outlook Calendar to Office 365

  • Certainty over costs upfront
  • To keep the business agile
  • To enhance communication
  • Boost employee productivity
  • To streamline IT operations
  • For powerful collaboration
  • Scalability and flexibility
  • Robust security/ compliance

Different Methodologies to Import Outlook Calendar to Office 365

The complete procedure to transfer Outlook 2007/ 2010/ 2013 calendar to Office 365 is categorized into two major steps:

Step 1. Export your Calendar from Outlook

Step 1. Firstly, Launch the Outlook application, open Calendar, and choose the calendar you need to export.

Step 2. Click File >> Save Calendar.

export outlook calendar to office 365

Step 3. Now, you can either use the default name or enter a new name for the iCalendar file in the File Name section.

Step 4. After this, you will get a summary displaying the date range, calendar name, and detail level next to More Options. If the summary report is fine then, go to point no. 7 otherwise, continue with point no. 5.

Step 5. Click on More Options.

Step 6. Hit the Date Range arrow, and select the amount of calendar data you need to include in the iCalendar file. Or, directly click on Specify dates to enter a particular date range.

Note: If you are selecting a large time interval or select a whole calendar then, it will generate a large iCalendar file, which may take a long time to create.

import outlook calendar to office 365

Step 7. Next, click on the Detail arrow and select the amount of detail you need to show.

Step 8. OK >> Save.

Step 9. If your calendar is blank, you will get a prompt to cancel saving the iCalendar file.

Step 2. Import the Calendar into Office 365

Step 1. Now, log in to your Office 365 account, where you need to shift or move the Outlook calendars.

Step 2. After that, Go to the Calendar option, and click Add Calendar >> From file.

transfer outlook calendar to O365

Step 3. Then, select the iCalendar file that you have exported from Outlook account. After that, store the chosen file by hitting the Save button.

import outlook calendar to office 365 online

Step 4. Eventually, access the Outlook calendars from your Office 365 account from the Your Calendars section.

how to import outlook calendar to office 365

Most Secure Way to Migrate Outlook Calendar to Office 365 Quickly

If you already have exported calendars from Microsoft Outlook in PST file format. Then, you can use the Office 365 Import tool to transfer the Outlook calendar to Office 365. It is an instant and smart way to import Outlook PST to Office 365 account even without any kind of data loss. This tool can migrate all PST data files such as Emails, calendars, and contacts. Free download this utility on your PC.

Download Now Buy Now

Detailed Software Working Steps to Transfer Outlook Calendar to Office 365 Easily

 Step 1. Begin by selecting Outlook as your source platform and Office 365 as your destination platform.

Source & Destination

Step 2. On the same screen, choose the calendar to import into Office 365 under Workload Selection.

Step 3. Utilize the Date-Range Filter option to selectively import mailbox data based on dates, and then proceed by clicking Next.

Step 4. You will now be directed to the Source screen. Here, pick the folder path where the Outlook PST files are located. Organize PST files in folders named after the respective target O365 email IDs, as follows:

– Create a folder in the root drive, such as E:/PST/user1@domainName.com/ (place all user1’s PST files here)

– E:/PST/user2@domainName.com/ (place all user2’s PST files here)

– E:/PST/user3@domainName.com/ (place all user3’s PST files here)

– And so forth…

Browse PST Folder

Next, select the folder “E:/PST/” in our tool as the Import Folder Path.

Step 5. Click on “Validate” to ensure that the necessary permissions have been granted to the files. Once validated, permissions will be granted to the source platform. Proceed by clicking “Next.”


Step 6. Enter the Office 365 admin email account and application ID for the destination. Click “Validate” to confirm the credentials. After validation, permissions will be granted to the admin account. Click “Next.”

Validate Credentials

Step 7. On the Users screen, you have multiple options for adding users from the source account that require processing:

  • Fetch Users – Automatically fetches users from the Source.
  • Import Users – Imports users through CSV.
  • Download Template – Downloads a template for creating a CSV file.

users Tab

Select the most suitable method for adding users.

Step 8. The list of source users is displayed on the screen. You can search for a specific mailbox and select that user for data import. Use the “Show Selected” toggle bar to display only the selected users, making selective data import easier.

Show Selected Users

Step 9. Now, users need to add destination user accounts. You have two options for this:

  • User List Template – Provides a sample CSV file for manually adding source users.
  • Import Users – Imports users through CSV.

Step 10. Click “Validate” to authorize the selected user source and destination accounts. Once users are validated, click the “OK” button.

Step 11. Users can prioritize the import task. Select accounts based on priority as shown in the image.

Priority Import

Step 12. Finally, click the “Start Import” button to import Outlook 2007, 2010, and 2013 Calendar to Office 365 safely.

Start Import

Final Verdict

The appreciation and acknowledgment that Office 365 is acquiring have now become one of the major reasons behind its vast use in businesses. Therefore, many Microsoft Outlook users wish to add their calendars to Office 365. In the above blog, we have discussed some methods to import Outlook 2007, 2010, and 2013 Calendar to Office 365 accounts. Now, it will be no more difficult for users to perform this task.