Export Excel Calendar To Google Calendar. Log in to your google account. You can download data that hasn't been deleted.

So you can’t pull excel directly into a google calendar, it must be a csv file: You can download data that hasn’t been deleted.
Login To The Google Suite Using Your Credentials.
Importing the csv file into google.
Select Settings From The Dropdown Menu.
Open google calendar open google calendar.
Under The My Calendars.
Images References :
Exporting The Data Is The Right Thing To Do Because Google Does Not Allow You To Keep And Maintain The Calendar Data For A Long Time.
The first step is to save your excel file as a csv file.
Click On The Settings Icon In The Top Right Corner.
You can expand the section by clicking on it.
All Your Google Calendar Events Can Be Exported To Google Sheets Using Apps Script.