Step 1. Open the Excel file you want to save as a comma delimited file.
Step 2. Click File at the top of Excel
Step 3. When the Save As window loads, type the name of your file into the "File Name" field and then, click the drop-down arrow next to "Save as type." Select "CSV (Comma delimited) (*.csv)" from the list of potential file types.
Step 4. Choose a folder or location where you want to save the file and then, click "Save" to save your file.
Step 5. Click "OK" to confirm your understanding that CSV files can't save multiple sheets and that only the active sheet will be saved. Click "Yes" to confirm that certain aspects of the spreadsheet may not be compatible with the CSV file type.