Spire.XLS is a professional Excel API that enables developers to create, manage, manipulate, convert and print Excel worksheets. Get free and professional technical support for Spire.XLS for .NET, Java, Android, C++, Python.
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- Converting from older format loses data validation?
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- 1795
- Amber.Gu
- Oct 24,2019
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- How to set cells as Currency
- 4
- 2567
- Amber.Gu
- Oct 23,2019
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- Excel to PDF conversion error if Sheet has Formula
- 4
- 1904
- Betsy.jiang
- Oct 21,2019
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- Convert XLS to PDF
- 4
- 3331
- Amber.Gu
- Oct 18,2019
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- Spire Xls Sort Column
- 5
- 2126
- Nina.Tang
- Oct 18,2019
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- Object reference not set to an instance of an object
- 5
- 1652
- Amber.Gu
- Oct 16,2019
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- Object reference not set to an instance when load file
- 2
- 1964
- Lisa.Li
- Oct 11,2019
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- problem vertical alignment
- 1
- 1814
- Amber.Gu
- Oct 10,2019
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- about CalculateAllValue
- 3
- 1910
- Amber.Gu
- Sep 30,2019
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- Line Chart DisplayBlanksAs Property in PDF and IMG
- 3
- 1528
- Amber.Gu
- Sep 25,2019
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- how to style whole worksheet
- 8
- 2325
- Amber.Gu
- Sep 19,2019
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- Convert xlsx to pdf: set page break correctly
- 3
- 1736
- Betsy.jiang
- Sep 18,2019
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- Is there away read and write data in Current Open workbook?
- 2
- 1145
- Amber.Gu
- Sep 16,2019
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- Problem with legend marker
- 3
- 1158
- Lisa.Li
- Sep 13,2019
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- A generic error occurred in GDI+
- 1
- 1328
- Betsy.jiang
- Sep 10,2019
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- AddCopy method change the background color of cells
- 5
- 1154
- Betsy.jiang
- Sep 06,2019
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- Formula not recalculating problem
- 8
- 1814
- Amber.Gu
- Sep 06,2019
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- extract image with shapes on top
- 3
- 1027
- Amber.Gu
- Aug 29,2019
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- About PDF export of text including Variation Selector.
- 12
- 1365
- Amber.Gu
- Aug 26,2019
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- Issue when deleting row in sheet that contains formula
- 4
- 1231
- Lisa.Li
- Aug 26,2019
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- How to convert xls to xlsx?
- 1
- 944
- Betsy.jiang
- Aug 21,2019
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- xls转为xlsx后,打开文件报错
- 1
- 887
- Amber.Gu
- Aug 21,2019
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- How to print a selected sheet from excel workbook
- 3
- 1653
- Betsy.jiang
- Aug 20,2019
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- Issue when deleting a sheet with named cells
- 6
- 1016
- Nina.Tang
- Aug 16,2019
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- The data export to excel and pdf are different
- 2
- 1126
- rachel.lei
- Aug 15,2019
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- Clone method of CellStyle does not inherit the Color prop
- 2
- 975
- rachel.lei
- Aug 15,2019
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- The type initializer for 'spr858' threw an exception
- 15
- 13670
- Lisa.Li
- Aug 13,2019
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- Push Free Version
- 1
- 733
- Amber.Gu
- Aug 12,2019
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- Custom Parameters in Marker Designer
- 3
- 953
- Betsy.jiang
- Aug 12,2019
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- Question about performance with free license
- 2
- 874
- Amber.Gu
- Aug 12,2019
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- Spire.XLS Remove Grid Lines
- 5
- 1143
- Amber.Gu
- Aug 12,2019
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- NOT IMPLEMENTED YET:GdipTransformPoints
- 3
- 1319
- Betsy.jiang
- Aug 09,2019
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- Export Excel to PDF with Pivot Table
- 1
- 825
- Betsy.jiang
- Aug 08,2019
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- How to use vlookup formula,
- 4
- 8170
- Betsy.jiang
- Aug 07,2019
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- dotnet core support
- 10
- 6335
- Amber.Gu
- Aug 07,2019
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- Empty values for charts
- 7
- 1043
- Lisa.Li
- Jul 29,2019
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- Issue with sorting
- 4
- 709
- Lisa.Li
- Jul 29,2019
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- InsertArray function not working as expected
- 1
- 854
- Lisa.Li
- Jul 25,2019
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- The type initializer for 'sprឹ' threw an exception
- 8
- 2691
- rachel.lei
- Jul 24,2019
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- What happen to my project if my license expired?
- 2
- 1151
- Nina.Tang
- Jul 22,2019
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- Checkbox bug
- 6
- 772
- Lisa.Li
- Jul 17,2019
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- Align textbox in centre of cell
- 1
- 800
- Lisa.Li
- Jul 16,2019
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- Copy a worksheet with macro
- 6
- 1140
- Nina.Tang
- Jul 12,2019
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- Issue when copying a sheet containing named cells
- 6
- 960
- Lisa.Li
- Jul 11,2019
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- Font from file in chart elements
- 3
- 1031
- Nina.Tang
- Jul 11,2019
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- Can I use FREE SPIRE.XLS for professional purposes?
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- 797
- Lisa.Li
- Jul 08,2019
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- Chart Operating
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- 740
- Nina.Tang
- Jul 08,2019
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- workbook.LoadFromFile() error "Unexpected xml tag".
- 6
- 1447
- Lisa.Li
- Jul 04,2019
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- Different chart between excel standard and FreeSpire.XLS
- 7
- 1011
- Lisa.Li
- Jul 03,2019
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- Unusual NullReference exception from Spire.XLS.DLL
- 19
- 11583
- Lisa.Li
- Jun 24,2019