xssf

I am trying to check if my excel file already exists. If it doesn't exists, I want to create a new one and if it exists I will delete it and create a new one. I wrote following program but I am getting error at line - workbook= WorkbookFactory.create(instream); The error is-> java.lang.IllegalArgumentException: Your InputStream was neither an OLE2 stream, nor an OOXML stream at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:89) at tryIng.main(tryIng.java:84) Here is a program -> try { String filePath= "C:/Users/pritik/Desktop/t1.xlsx"; File file = new File(filePath);

I am trying to create cells comments using apache poi. I am able to create the comments, but by default they are always displayed in excel. I have to manual right click on the cell and un-tick show comments to make them invisible(now they appear only when I hover on the cell). Is it possible to make cell comments invisible by default(so that they don't appear in the excel until user hover over the cell.) Here is the code I used : Drawing drawing = cell.getSheet().createDrawingPatriarch(); CreationHelper factory = cell.getSheet().getWorkbook().getCreationHelper(); ClientAnchor anchor = factory

Apache POI API及使用教程 Apache POI是一个开源的Java读写Excel、WORD等微软OLE2组件文档的项目。目前POI已经有了Ruby版本。 结构： HSSF － 提供读写Microsoft Excel XLS格式档案的功能。 XSSF － 提供读写Microsoft Excel OOXML XLSX格式档案的功能。 HWPF － 提供读写Microsoft Word DOC97格式档案的功能。 XWPF － 提供读写Microsoft Word DOC2003格式档案的功能。 HSLF － 提供读写Microsoft PowerPoint格式档案的功能。 HDGF － 提供读Microsoft Visio格式档案的功能。 HPBF － 提供读Microsoft Publisher格式档案的功能。 HSMF － 提供读Microsoft Outlook格式档案的功能。 由于涉及内容太多，关于API及使用方法我仅仅列出学习途径；可以作学习教程，也可以开发时作为查询工具： 一、官方文档（英语） Apache poi 官网API文档 二、优秀教程 易百网中文教程（墙裂推荐）： Java POI Excel v3.17使用教程 Java POI Word v3.17使用教程 Java POI PPT v3.17使用教程 Java PDF pdfbox 使用教程

I try to parse an excel file into XML using apache poi xssf. Now having a cell and not knowing what is in it I just want to get a String out of it. But when I use cell.getStringCellValue() it throws an exception, what is not very suprising since it is documented this way. So I build my way around that by checking weather it is a numeric or a text cell. But what to do with formula cells. They may contain numbers like = A2 + B2 What gives me the sum (e.g. 4) or a reference to another text = C2 what might refer to a text like "Hans". How can I know what is really in my cell and how do I get a

I am using POI 3.12-beta1: <!-- Apache POI (for Excel) --> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.12-beta1</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>3.12-beta1</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>ooxml-schemas</artifactId> <version>1.1</version> </dependency> I am trying to create a calculated pivot table column which is defined as: = 'Ended' / 'Generated' * 100 . I went ahead and manually edited the sheet in Excel to get this

I just have a quick question about how to read in an xlsx file using the XSSF format from Apache. Right now my code looks like this: InputStream fs = new FileInputStream(filename); // (1) XSSFWorkbook wb = new XSSFWorkbook(fs); // (2) XSSFSheet sheet = wb.getSheetAt(0); // (3) ...with all the relevant things imported. My problem is that when I hit run, it gets stuck at line (2), in almost an infinite loop. filename is just a string. If anybody could give me some sample code on how to fix this I would really appreciate it. All i want right now is to read in a single cell from an xlsx file; I

I was getting the html data from database. Below is the example : <ul> <li> <strong>Iam Bold </strong> <u><span style="color:Red">Iam Red Colored and Underlined</span> </u> </li> <li> Just a Normal Text </li> <li> Iam <b> Bold </b> <i><span style="color:Green"> and italic with colored </span></i> <u> and underlined </u> </li> </ul> Now the same formatting is to be there in my excel output. Please see the below image for excel output. I know that by using Jsoup , you can parse the above html and by using XSSFRichTextString , you can show the richtext in xssfcell. Also by using bullet character