# How to include an ICS file inside confirmation and reschedule emails
{% hint style="info" %}
**What is an ICS file?** An ICS file is a calendar file saved in a universal calendar format used by several email and calendar programs, including Microsoft Outlook, Google Calendar, and Apple Calendar. It allows users to share calendar information on the web and over email.
{% endhint %}
For example you might want to add an upcoming booking to your outlook calendar or your apple calendar. You would go to your respective calendar and look for the import feature to import the ICS file.
### **Steps to include an ICS file inside of confirmation and reschedule emails**
1. In your Shopify admin dashboard look at the left panel and click on **Apps.**
2. Click on **Cowlendar.**
3. Click on **Settings.**
4. Click on **Email Settings.**
5. Toggle on **Include ICS file inside confirmation & reschedule emails.**
6. Hit **save.**
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