.CSV to .ICS without third-party software

Hello,

I have made a Numbers document that when combined with a shortcut will create multiple calendar events instead of adding them one at a time manually. The issue is that you have to have access to the calendar and an iOS device in order for it to work.

The hurdle I am running into now is that I want to rework this so that multiple people can use it, but they will not have access to the calendars and may not all have an iOS device to run the shortcut. What I would like to do is have these other people build the CSV files in the numbers document then convert it to a .ics file (without a third-party piece of software being needed) which can be sent to someone else to import into their calendar. I have already changed the document so that it formats the data into a CSV format for a calendar but I can't see how to convert it to a .ics file to send.

Hopefully someone has some sort of solution for this :)

Thanks in advance.