Released: Jul 26, 2025

Updates in 8.1.5

Fixes

• When a specific file is loaded and borders are added to cells, the used range becomes incorrect.
• A workbook calculation exception occurs when a formula contains an external workbook reference.
• Unexpected file size increases when applying NumberFormat and HorizontalAlignment to entire rows or columns.
• The LET function returns a #REF! error.
• The chart does not meet expectations after data expansion.
• Issue with the HOUR formula.
• After setting multiple SubtotalTypeNone options in a pivot table, exporting Excel SubtotalTypeNone settings does not take effect.
• An InvalidFormulaException occurs when a LAMBDA parameter is named "rc" in a Name Manager formula.
• Lack of parallelism in the Calculation Engine for independent workbook instances.