Convert any Excel spreadsheet into an ICS file you can import into Apple Calendar, Microsoft Outlook, Thunderbird, or any app that supports iCalendar.
Convert Excel to ICS NowICS (iCalendar) is the universal calendar format supported by virtually every calendar application. When you convert your Excel schedule to ICS, you get a single file containing all your events that can be imported with one click.
Upload your .xlsx, .xls, or .csv file, map your columns to calendar fields (date, time, event name, location, description), and download the ICS file. The conversion runs entirely in your browser — no data is uploaded to any server.
Multi-sheet workbooks are supported. You can choose which sheet to convert.