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Updated Wiki: Home

Who are WeNeuzilla is the studio behind Toxy. For detail, you can check http://blog.neuzilla.com/官方微信公众号 What's NPOIThis project is the .NET version of POI Java project at http://poi.apache.org/. POI...

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Who are WeNeuzilla is the studio behind Toxy. For detail, you can check http://blog.neuzilla.com/官方微信公众号 Our Sponsor E-iceblue is a community sponsor of NPOIE-iceblue components enable developers to...

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Released: NPOI 2.1.3.1 (Feb 22, 2015)

官方微信公众号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...

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Updated Release: NPOI 2.1.3.1 (二月 22, 2015)

官方微信公众号BUG FIXESa. fix word serialization issuesb. fix CloneStyleFrom issuec. Fix vertical alignment default value for XSSFCelld. fix setAutoFilter change range issuee. fix EDate functionf. fix...

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Updated Wiki: Home

Who are WeNeuzilla is the studio behind Toxy. For detail, you can check http://blog.neuzilla.com/官方微信公众号 Our Sponsor E-iceblue is a community sponsor of NPOIE-iceblue components enable developers to...

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Released: NPOI 2.1.3.1 (Feb 22, 2015)

关注官方微信公众号, 请搜索"架构师联盟"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...

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Updated Release: NPOI 2.1.3.1 (二月 22, 2015)

关注官方微信公众号, 请搜索"架构师联盟"BUG FIXESa. fix word serialization issuesb. fix CloneStyleFrom issuec. Fix vertical alignment default value for XSSFCelld. fix setAutoFilter change range issuee. fix EDate...

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New Post: Stream write in xls

There is some method to stream write into xls document?

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Commented Issue: CloneStyleFrom not working as expected [13369]

Hi,I'm trying to clone a cellstyle using CloneStyleFrom however, it doesn't appear to be working as expected.When I modify the 'cloned' style, the original cell style is also modified.FYI - I'm using...

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Created Unassigned: Problem with formula uses COUNTIFS() [13524]

Hi,i´m using MS Excel 2013 (German). Via NPOI i´ll setxCell.SetCellType(NPOI.SS.UserModel.CellType.Formula)xCell.SetCellFormula("COUNTIFS(Sheet1!B2:B11,2,Sheet1!H2:H11,""yes"")")so Long... after...

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Commented Unassigned: Problem with formula uses COUNTIFS() [13524]

Hi,i´m using MS Excel 2013 (German). Via NPOI i´ll setxCell.SetCellType(NPOI.SS.UserModel.CellType.Formula)xCell.SetCellFormula("COUNTIFS(Sheet1!B2:B11,2,Sheet1!H2:H11,""yes"")")so Long... after...

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New Post: Stress test of XSSF proves exponential time (performance concerns)

Hi All, I have similar issue but with cells not rows. I am adding lot of cells (> 10 000) in a single row. According to performance analysis, I have problem with GetLastKey on XSSFRow. I am looking...

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New Post: Stress test of XSSF proves exponential time (performance concerns)

Update: I've tried to update the source code and it helped. Data export in my application duration reduced from 7 minutes to several seconds. XSSFRow.cs:private SortedList<int, ICell> _cells;int...

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Commented Unassigned: Problem with formula uses COUNTIFS() [13524]

Hi,i´m using MS Excel 2013 (German). Via NPOI i´ll setxCell.SetCellType(NPOI.SS.UserModel.CellType.Formula)xCell.SetCellFormula("COUNTIFS(Sheet1!B2:B11,2,Sheet1!H2:H11,""yes"")")so Long... after...

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Created Unassigned: Sheet.CopyRow does not work in XSSF. [13533]

Can't get the inserted row, it returns null from GetRow method.example code:xssfSheet.CopyRow(3,4);IRow row = xssfSheet.GetRow(4);

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New Post: Slow iteration in XSSFSheet

Hello, I have a performance issue with XSSFSheet. I have a sheet with 65536 rows (yes, that is a maximum for HSSFSheet). If I use exactly the same processing of the same data being stored as XLS and...

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New Post: Slow iteration in XSSFSheet

The reason is simple. HSSF is for binary based Excel format called BIFF format. XSSF is for XML based Excel format called OpenXML. XML is very slow in .NET (maybe XmlReader can be faster but it's...

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Created Unassigned: Autofilter not working in protected sheet [13539]

Autofilter not working in protected sheet. Plz help if anyone have any solution. thanks in advance.

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New Post: Protect Sheet with AutoFilters

I am alo facing same issue, filter not responding after sheet protection.

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