Related Questions:
Create a spreadsheets to upload data into Event Temple
Transfer my data into Event Temple
Answer:
An import template can be found in this Google Document.
This is a read-only document, so you will have to do one of the following:
Make a copy of it (Click File > Make a Copy)
Download a copy of the template (Click File > Download > Microsoft Excel (.xlsx) or Commma Separated Value (.csv)
The document is broken down into tabs - each tab will have to be its own spreadsheet document for import.