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This project is the .NET version of POI from Apache Foundation. NPOI can read and write xls (Excel 97-2003), xlsx(Excel 2007+) and docx(Word 2007+)

There is a newer version of this package available.
See the version list below for details.
Install-Package NPOI -Version
dotnet add package NPOI --version
<PackageReference Include="NPOI" Version="" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add NPOI --version
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

Bug Fixes
a. fix word serialization issues
b. fix CloneStyleFrom issue
c. Fix vertical alignment default value for XSSFCell
d. fix setAutoFilter change range issue
e. fix EDate function
f. fix FormatException in FormulaParser
g. fix Comment random Shape issue (comment serialization issue)
h. fix not be able to unlock the cell issue

55729 - DataFormatter should format Error cells, returning the Excel error string
49237 - HSSF Row Style XfIndex is 12 not 16 bits of data
54607 - NullPointerException in XSSFSheet.getTopRow() when the top row is 1
55745 - fix handling of tables in XSSF if there are comments as well
54673 - Simple wildcard support in HLOOKUP, VOOLKUP, MATCH, COUNTIF
55047 - REPT formula support
55042 - COMPLEX formula support
55041 - CODE formula support
54508 - EDATE formula support
53966 - IfError support (from Analysis Toolpak)
54402 - IfError handling of indirect references

New feature
a. Add ReplaceText to XWPFParagraph and XWPFRun
b. adjust ExcelExtractor interface
c. Improving comment missing handling in HSSFSheet
d. copy hyperlink in CopySheet and fix some bugs
e. Implement ChartSheet in OpenXmlFormats
f. Implement shrinktofit for XSSF


This package has no dependencies.

Version History

Version Downloads Last updated
2.4.1 163,054 12/18/2018
2.4.0 83,684 10/28/2018
2.3.0 1,002,416 3/20/2017
2.2.1 579,492 5/31/2016 403,818 2/22/2015
2.1.3 39,142 12/31/2014
2.0.6 145,798 4/12/2014
1.2.5 114,421 7/29/2012
1.2.4 12,904 11/15/2011
1.2.3 10,824 1/12/2011