Double-click the CSV file to open it in the default app
Open it with Microsoft Excel
Open it with Google Sheets
Open it with LibreOffice Calc
Open it with Apple Numbers
Open it with a text editor such as Notepad or TextEdit
Open it from the File menu in a spreadsheet program
Import it into a data analysis tool or database application
Right-click the file and choose Open With
Drag and drop the CSV file into a compatible app