I have file in type xls with xml extension, I want to read it like excel file.
I trying
HSSFWorkbook wb = new HSSFWorkbook(new FileInputStream(inputFile));
HSSFSheet sheet = wb.getSheetAt(0);
but it read only with xls extension.
someone know how??
thank
You have to use the XSSF* Classes.
XSSF is the POI Project's pure Java implementation of the Excel 2007 OOXML (.xlsx) file format.
https://poi.apache.org/spreadsheet/index.html
XSSFWorkbook wb = new XSSFWorkbook(new FileInputStream(inputFile));
XSSFSheet sheet = wb.getSheetAt(0);
Related
XSSFSheet sheet = workbook.getXSSFWorkbook().getSheetAt(0);
XSSFSheet pivot_sheet = workbook.getXSSFWorkbook().createSheet("Sheet1");
XSSFPivotTable pivotTable = pivot_sheet.createPivotTable(new AreaReference("B10:AJ24"), new CellReference("B2"),sheet);
I am getting following error at above line -
java.lang.NullPointerException at
org.apache.poi.xssf.usermodel.XSSFPivotCacheDefinition.createCacheFields(XSSFPivotCacheDefinition.java:145)
at
org.apache.poi.xssf.usermodel.XSSFSheet.createPivotTable(XSSFSheet.java:4065)
I didn't find solution for this using apache poi.
Workaround that I used is mentioned as follows :
Create SXSSFWorkbook as below
SXSSFWorkbook workbook = new SXSSFWorkbook(new XSSFWorkbook(new FileInputStream("xyz.xlsm")));
workbook.removeSheetAt(0);
xyz.xlsm is macro enabled excel which holds VBA code for generating pivot
Write in workbook as usual
Pivots will get generated in excel on opening it after download
I would like to be able to open Excel file of arbotrary type. Is it possible to select between HSSFWorkbook and XSSFWorkbook automatically?
Currently I write
Workbook workbook = new HSSFWorkbook(excelFile);
Can I write universal?
Yes! All you need to do is use WorkbookFactory
As per this part of the docs, it's better to use a File than an InputStream. So, just do something like:
File file = new File("input.xls");
Workbook wb = WorkbookFactory.create(file);
That will create whichever of HSSFWorkbook or XSSFWorkbook your file needs
I can't get all the pictures in .xlsx file that I made in MS Excel while when I used Google spreadsheet to create a .xlsx file it can read all the pictures that I inserted there.
My code is here:
XSSFWorkbook workbook = new XSSFWorkbook("Sample.xlsx");
XSSFSheet sheet = workbook.getSheetAt(0);
List lst = workbook.getAllPictures();
Is there a way on how to read ALL the images in a .xlsx file which is done by MS Excel?
the question is how can i use java to input a csv file and output an xls file
is there any specefic api or lib which can help question gonna help so why it s error on opening a sheet
FileOutputStream fos = new FileOutputStream(outputFile);
HSSFWorkbook workbook = new HSSFWorkbook(new FileInputStream(inputFile));
workbook.setMissingCellPolicy(Row.CREATE_NULL_AS_BLANK);
HSSFSheet sheet = workbook.getSheetAt(0);
after i tried i think it s due to a memor problem idk
i want to read a microsoft word document i.e. .docx format using POI but getting error:
The supplied data appears to be in the Office 2007+ XML. POI only supports OLE2 Office documents
if anyone can help me to get rid of this??
You should have a read through the Converting from HSSF to the Common SS Usermodel page to help you understand what you need to change.
As a general guide though, if your code was previously
HSSFWorkbook wb = new HSSFWorkbook(new FileInputStream("foo.xls"));
HSSFSheet s = wb.getSheetAt(0);
HSSFRow r = s.getRow(0);
System.out.println("Cell A1 is " + r.getCell(0));
It should instead become
Workbook wb = WorkbookFactory.create(new File("foo.xls")); // Or foo.xlsx
Sheet s = wb.getSheetAt(0);
Row r = s.getRow(0);
System.out.println("Cell A1 is " + r.getCell(0));
Please check http://poi.apache.org/spreadsheet/converting.html about new models XSSF and HSSF.
Not sure which API from POI you are using, but I presume that you are using the HSSF API. Instead you should use the the XSSF API (see http://poi.apache.org/spreadsheet/index.html for details). For example instead of using Workbook wb = new HSSFWorkbook(); use Workbook wb = new XSSFWorkbook();
HSSF workbook will not work for higher version of excel file instead of HSSFWorkbook use XXSFWOrkbook.You can have the complete code in the below link
http://aravind-soa.blogspot.com/2017/02/how-to-import-excel-file-into-oracle.html