NPOI

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Caching implemented for the result of HSSFCellStyle.GetDataFormatString() uses unguarded statics and is not thread safe. In a multi-threaded environment you may receive the format string for a different cell.

tbuchan

Hi I am trying to use NPOI in my asp.net core 2.2 library but I get a warning sign on the package when I installed it but it does not...

chobo2

Use Memeory stream to read word file

1

I know how to read a file on disk with: `using (FileStream file = new FileStream(` etc.. Is there a way to do the same from Memory stream or the...

Ofer-Gal

请问XSSFWorkbook里面如何绘制直线，一直没有绘制成功

1

如何在xlsx文件中绘制带箭头的线？

arthurluc

``` System.InvalidCastException: Unable to cast object of type 'NPOI.HSSF.Record.BOFRecord' to type 'NPOI.HSSF.Record.TabIdRecord'. at NPOI.HSSF.Model.InternalWorkbook.FixTabIdRecord() at NPOI.HSSF.Model.InternalWorkbook.CheckSheets(System.Int32 sheetnum) at offset 40 at NPOI.HSSF.Model.InternalWorkbook.SetSheetName(System.Int32 sheetnum, System.String sheetname) at NPOI.HSSF.UserModel.HSSFWorkbook.CreateSheet(System.String sheetname) at offset...

sampsonye

NPOI removes background color from conditional formattings

1

Hi, I am having an issue with NPOI removing background colors from my conditional formattings when reading and writing XLSX files. I am using Version 1.2.1. When using the following...

claasd

I've checked the code https://github.com/dotnetcore/NPOI/blob/947220dedb1fc506e764568159a95498295250cf/src/NPOI/SS/Util/SheetUtil.cs#L442 Looks you are just use the fixed width of the single half-width character with the content length to calating the cell width. But it's not...

Flithor

 DotNetCore.NPOI 1.2.2 **protected ISheet Sheet;** //for each result I usualy add an AutoSizeColumn. However now I got a message "Could not load file or assembly 'System.Drawing.Common, Version=0.0.0.0, Culture=neutral" for...

rluisnpt1

I have a .xls sheet with multiple sheets. I'm using following code to read the excel using NPOI package: WorkbookFactory.Create(fs) where fs = new FileStream(feedFilePath, FileMode.Open, FileAccess.Read) WorkbookFactory.Create(fs) is throwing...

mv27389

I have Workbook_1 that has worksheet_1 in it, and also the sheet has some macros programmed. If I want to clone Worksheed_1 into a new workbook (Workbook_2) , is it...

fmenseguez