Quote:Google Calendar Events are a great way to organize meetings, but no meeting is complete without a slideshow, spreadsheet, pictures, or reports. Fortunately, you can easily attach anything from your Google Drive or your local hard drive to an event.

How to Attach Files to Google Calendar Events

Adding attachments to an event gives you an easy way to share materials with attendees ahead of time. It also lets them pull up those materials at the meeting without having to hunt around for them.

Fire up Google Calendar in your web browser and click the red “+” to create a new event.

Full reading: https://www.howtogeek.com/394760/how-to-attach-files-to-google-calendar-events/