Released: Jan 6, 2026

v9.0.0 での更新項目

機能

• Support Lossless of Query Table.
• Added support for new Excel functions VALUETOTEXT and ARRAYTOTEXT.
• Support controlling SharedFormula export in XLSX export.
• Support AI functions.
• Support SJS/SSJSON IO of Threaded comments.
• Performance optimization.

不具合の修正

• Copying a Worksheet with many formulas is very slow.
• Opening and profiling a Workbook is noticeably slower.
• Saving a Workbook to PDF can trigger a console error.
• Formatting and AutoFit on very large reports causes severe slowdowns and high memory use.
• Copying formulas across Worksheets is significantly slower in newer versions.
• Range.Copy on very large ranges can be extremely slow.
• Enabling the calculation engine after sheet and named-range changes can throw a NullReferenceException.
• XLOOKUP can return incorrect numeric results compared to Excel.
• Accessing Range.Text may throw an exception.
• LET formulas adding a scalar to very large arrays return values only in the first row and zeros elsewhere.