How to Use

Last updated:July 8, 2026

Use COUPDAYS through 3 task topics, including inserting it from the Insert Function dialog box, typing the formula directly, and reviewing syntax and parameter details; choose a topic from the index and follow the entry path and steps.

How-to Index

How-to Guide

1. Insert COUPDAYS from the Insert Function dialog box

Entry path: Formula tab → Insert Function

  1. Select the cell where you want to enter the formula.
  2. Click the fx button in the formula bar, or click Insert Function on the Formula tab.
  3. Search for COUPDAYS in the Insert Function dialog box.
  4. Select the function and click OK.
  5. Enter each parameter in the Function Arguments dialog box.
  6. Click OK to finish inserting the function.

Success Criteria

  • Interface result: The target cell contains the COUPDAYS function.
  • Next action: You can continue editing parameters, press Enter to confirm, or copy the formula to other cells.

Tips While Using

  • Use the standard function name when searching to avoid input errors.
  • Separate parameters with English commas.

2. Type the formula directly in a cell

Entry path: Worksheet cell → Formula bar

  1. Select the cell where you want to enter the formula.
  2. Type =COUPDAYS(...) directly in the cell or in the formula bar.
  3. Press Enter to confirm the formula.
  4. If you want to review parameter details, type =COUPDAYS( and then press F1 to view syntax guidance.

Success Criteria

  • Interface result: The cell shows a calculation result, and the formula bar keeps the full formula.
  • Next action: You can continue editing the formula or fill it down to other cells.

Tips While Using

  • Chinese punctuation can prevent the formula from being recognized correctly, so use English commas.
  • Before copying the formula in bulk, confirm whether relative and absolute references are set as expected.

3. Review syntax and parameter details

Entry path: Formula tab → Insert Function

  1. Click Insert Function on the Formula tab.
  2. Enter COUPDAYS in the search box.
  3. Select the function and review the syntax: COUPDAYS(settlement, maturity, frequency, [basis]).
  4. Click the help link for the function to view more details.

Success Criteria

  • Interface result: You can see the function name, syntax structure, and parameter input area.
  • Next action: You can return to the worksheet to continue entering the formula or adjust parameters after reviewing the help information.

Tips While Using

  • basis is an optional parameter, so confirm the required day-count basis before entry.
  • Opening the help link requires an internet connection.