Hi, I know and have experience in using Google Apps Script which is sort of like magic that can be used to integrate different Google Apps together. It can also be utilized to integrate Google Sheets with Google Calendar.
Tell me what type of calendar events would you like to auto create using Google Sheets and what type of data will you provide in your spreadsheet.
Allow me to perform the magic by coding Google Apps Script to integrate your Google Sheets with your Google Calendar.
Thank you.