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Written By Rohit Singh
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Updated on August 14th, 2025
Clients often share project schedules or meeting plans in the form of an ICS file. Now, to integrate these meeting schedules into Office 365, the user opts to import ICS to Office 365. To do this, there are manual techniques and professional software, the Cigati ICS Converter. The manual techniques provide a cost-free way to import the ICS file, but come with some drawbacks. Therefore, a professional tool is recommended. Follow the blog till the end to learn the step-by-step process in detail.
To boost planning and productivity, users choose to import ICS file to Office 365. The following are the key advantages of importing the calendar into Office 365:
There are two efficient ways to import an ICS file to Office 365. One being by using a free manual method and the other being a more professional approach trusted by experts. Let’s explore both ways:
This process uses the Outlook web app to import an external calendar ICS file into Office 365. It is a simple method that uses simple steps.
These are the following instructions to begin the import process:
Limitations: This process is used for one-time import. It does not sync the calendar automatically later. Some attachments may not import correctly. Moreover, large ICS files may not import or take time to import.
This method is only done on the Outlook Desktop Application. By using the Outook’s Import/Export feature, users can easily import the ICS calendar.
These are the steps to proceed with the import process:
The Cigati ICS File Converter is a versatile tool that simplifies importing an ICS calendar to Office 365. Along with this, it imports to other email clients as well. The tool also has the feature to either import a single ICS file or multiple ICS files at once. It also downloads the ICS files in several image, document, and Excel formats. Besides this, it has a date range filter to convert events for a specific period. Moreover, it gives the flexibility to exclude attachments and remove duplicate events based on subject and date.
Now that you know different methods to import ICS calendar to Office 365, including manual and automated options. The manual options include using Outlook Web App and the Outlook desktop app. But they need manual efforts and are time-consuming to import ICS to Office 365. Therefore, for a more efficient approach, the automated Cigati ICS File Converter Tool is the best choice. Choose the method that fits your scenario, whether you prioritize automation, speed, or bulk conversion.
You May Also Read: Convert ICS to PDF
Ans: ICS files are digital calendar files that store the calendar details in a standardized format called iCalendar. It is supported by most of the calendar applications, such as Google Calendar, Apple Calendar, Office 365, and Mozilla Thunderbird.
Ans: To import the ICS file manually, use either Outlook Web App or Outlook Desktop App. First, log in to your Office 365 account on your web browser. Then, in Outlook, head to Calendar > Add Calendar > Upload from file. Next, upload the desired .ics file and tap on the Import button.
About The Author:
Rohit Singh is a technology professional with 7+ years of experience specializing in email systems, Exchange Server, Office 365, MS Outlook, and data migration solutions. He creates clear, practical, and solution-oriented content to help users and IT professionals resolve complex technical challenges efficiently.
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