From Excel or Open Office Calc
- Open your file in Excel or Open Office Calc.
- File -> Save As
- Select “CSV (Comma Delimited)” in the “Save as Type” field
How to Convert from Google Sheets
- Open your file in Google Sheets.
- File -> Download As
- Select “Comma-separated values (.csv, current sheet)”
- If you have multiple sheets that you need to convert, make sure you do this for all.