9-4
u To delete a file
  1. Press  1(FILE) 2(OPEN).
  2. On the file list that appears, use  f and  c to select the file you want to delete and then 
press  1(DELETE).
  3. This causes a confirmation message to appear. Press  1(Yes) to delete the file, or  6(No) 
to cancel without deleting anything.
  4. To return to the spreadsheet from the file list, press  J.
  • Deleting the currently open file will automatically create a new file named “SHEET” and 
display its spreadsheet.
k Transferring Data between a Spreadsheet and CSV Files
You can import the contents of a CSV file stored with this calculator or transferred from a 
computer into a spreadsheet. You also can save the contents of a spreadsheet as a CSV file.
u To import the contents of a CSV file to a spreadsheet
1. Prepare the CSV file you want to import.
• See “Import CSV File Requirements” (page 3-18).
2. Press 1(FILE)5(CSV)1(LOAD).
• Pressing w in the next step will overwrite all of the data on the spreadsheet with the CSV 
file data.
3. On the select file dialog box that appears, use f and c to move the highlighting to the 
file you want to import and then press w.
• This imports the contents of the CSV file you specified to the spreadsheet.
Important!
• All blank data in the CSV file is imported as a blank cell.
• An error occurs if a CSV file contains even a single text string data item.
• If the CSV file includes data that cannot be converted, an error message will appear showing 
the location in the CSV file (Example: row 2, column 3) where the data that cannot be 
converted is located.
• Attempting to import a CSV file that has more than 26 columns or 999 rows will cause an 
“Invalid Data Size” error. 
u To save spreadsheet contents as a CSV file
1. If required, press 1(FILE)4(RECALCS) to recalculate the spreadsheet contents. 
• Note that recalculation is not performed automatically when you save spreadsheet 
contents to a CSV file. Be sure to perform recalculation if the spreadsheet contains a 
formula, which starts with an equals symbol (=). See “Inputting a Formula into a Cell” 
(page 9-10) for more information.
• Formulas are not saved to the CSV file. Only calculation results are saved. 
• All ERROR cell data on the spreadsheet is saved as blank data.