There are a number of different solutions you can use to change your file to UTF-8 encoding.
Using Google Sheets
Create a new Google Sheets document.
In the new Google Sheets document, import your CSV file by clicking on File > Import > and select your .csv file
Once you import your file, you can click on File > Download As > Comma-Separated Values to save the file to your computer.
Your new CSV file is now encoded using the UTF-8 format and is ready to be imported into Coconut
Using Microsoft Excel
Open your CSV file in Microsoft Excel, then click File > Save As
Enter any name for the file, then select "CSV UTF-8 (Comma delimited) (*.csv)" as your desired file format.
Click Save.
Your new CSV file is now encoded using the UTF-8 format and is ready to be imported into Coconut
Using Notepad (Windows)
Open your CSV file in Notepad.
Click File > Save as...
In the dialog which appears, select the following options:
In the "Save as type" drop-down, select All Files.
In the "Encoding" drop-down, select UTF-8.
Rename your file using the .csv extension (Example: Staff.csv).
Click Save.
Click Save.
Your new CSV file is now encoded using the UTF-8 format and is ready to be imported into Coconut
Using Numbers (MacOS)
Open your CSV file in Numbers.
Click File in the top-left corner of your screen.
Select Export to... -> CSV...
Click Advanced options.
Click the drop-down menu next to Text Encoding.
Select Unicode (UTF-8).
Click Next
Choose a name and location for your new file and click Save.
Your new CSV file is now encoded using the UTF-8 format and is ready to be imported into Coconut