In-order to properly read the data from your file, it must be in a .CSV file. If you received a data file in an Excel format or have typed it directly into Excel, you simply need to convert it to .CSV format.
- Open the .xlsx file in Microsoft Excel
- Click "File"
- Click "Save As"
- From the File Type drop-down, choose "CSV (Comma delimited)(*.csv)"
- Click "Save"