Before you upload your CSV, you'll want to make sure that it is ready to go!
If you exported your list from an email provider, or database, you'll want to delete everything that isn't an email.
Emails should be listed in a single column, without a header or other information.
Here's what it should look like:
To save this list, you'll want to select "Save As" in your spreadsheet program and select "CSV." You're now ready to upload this CSV to Carro!