I have XLS file with macro, to convert it to OpenXML format, I am using Spire.XLS and able to convert file to XLSM format. Then using OpenXML SDK to convert XLSM file to XLSX format like below:
string lstrOpenXMLXLSMIPDTemplatePath = pstrIPDTemplatePath.Replace(".xls", ".xlsm");
Spire.Xls.Workbook lobjDSTemplateWorkbook = new Spire.Xls.Workbook();
lobjDSTemplateWorkbook.DisableMacrosStart = false;
lobjDSTemplateWorkbook.LoadFromFile(pstrIPDTemplatePath);
lobjDSTemplateWorkbook.SaveToFile(lstrOpenXMLXLSMIPDTemplatePath, Spire.Xls.ExcelVersion.Version2013);
pstrOpenXMLIPDTemplatePath = lstrOpenXMLXLSMIPDTemplatePath.Replace(".xlsm", ".xlsx");
using (var XLSMStream = File.OpenRead(lstrOpenXMLXLSMIPDTemplatePath))
using (var XLSXStream = new MemoryStream())
{
XLSMStream.CopyTo(XLSXStream);
using (var doc = SpreadsheetDocument.Open(XLSXStream, true))
{
doc.DeletePartsRecursivelyOfType<VbaDataPart>();
doc.DeletePartsRecursivelyOfType<VbaProjectPart>();
doc.ChangeDocumentType(DocumentFormat.OpenXml.SpreadsheetDocumentType.Workbook);
}
File.WriteAllBytes(pstrOpenXMLIPDTemplatePath, XLSXStream.ToArray());
}
Is there any to convert file directly to XLSX format with Spire.XLS Dll or some other way.
Yes, you can use Spire.XLS dll to convert XLS to XLSX format directly using the below code:
Workbook workbook = new Workbook();
workbook.LoadFromFile("input.xls");
//Set the version to Excel 2007 or above
workbook.SaveToFile("output.xlsx", ExcelVersion.Version2007);
Related
I am reading xlsb file using XSSFBReader class from apache poi library. I do not find any way to read only visible sheets of xlsb file. Currently, code reads all the sheets of xlsb file.
How to read only visible sheets using XSSFBReader ?
pkg = OPCPackage.open(filename, PackageAccess.READ_WRITE);
XSSFBReader r = new XSSFBReader(pkg);
XSSFBReader.SheetIterator it = (XSSFBReader.SheetIterator) r.getSheetsData();
while (it.hasNext()) { //This iterates over all sheets of xlsb file
InputStream is = it.next();
String sheetName = it.getSheetName();
//some processing
}
I'm using NPOI to open an existing Excel file, make modifications, and write it back to disk.
However, when I open the file with NPOI and write it back, the file becomes damaged. Excel complains that the file "contains unreadable content", and asks whether I want to "recover the contents" of the file. When I select OK, it says:
Excel cannot open the file 'test.xlsx' because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file.
Here is my code:
var excelFilename = "c:\\temp\\simplefile.xlsx";
IWorkbook wb;
using (var fs = File.OpenRead(excelFilename))
{
wb = new XSSFWorkbook(fs);
}
var sheet = wb.GetSheetAt(0);
// For this sample, we don't make any modifications to the file.
// Just opening and writing it back is enough to produce this error.
using (var str = new FileStream(excelFilename, FileMode.Open, FileAccess.ReadWrite))
{
wb.Write(str);
}
"simplefile.xlsx" is an empty excel workbook created by Excel 2010.
What's happening here?
I need to modify some cells of an Excel file stored in Google Drive. I'm using Apache POI to manipulate the Excel file and I can read and modify the file, but when I commit it to Google Drive it seems to work, it returns a success code but the file is not changed in Drive. The function I'm using to save the file is:
ParcelFileDescriptor file=result.getDriveContents().getParcelFileDescriptor();
InputStream in=new FileInputStream(file.getFileDescriptor());
HSSFWorkbook wb = new HSSFWorkbook(in);
for(Componente c:listaComponentes){
HSSFSheet sheet=wb.getSheetAt(c.getHoja());
HSSFRow fila=sheet.getRow(c.getFila());
fila.getCell(celdaSerie).setCellValue(c.getSerie());
}
FileOutputStream fileOut = new FileOutputStream(file.getFileDescriptor());
wb.write(fileOut);
result.getDriveContents().commit(mGoogleApiClient, null);
I have a template xlsx, called "book3.xlsx" that contains a pre-formatted chart. All I want to do is to read my template xlsx and modify some cells and write out the a xlsx ("test.xlsx")
A strange thing happens here, if i open the result xlsx the format of the chart has changed... It has different coloring, axis is missing etc. When I used xls file format it was fine, but we should use xlsx. Anyone noticed this issue?
var file = new FileStream(#"book3.xlsx", FileMode.Open, FileAccess.Read);
var workbook = new XSSFWorkbook(file);
using (var fs = new FileStream(#"test.xlsx", FileMode.Create))
{
workbook.Write(fs);
}
Is there a programmatic solution to this that does not involve having Office on the server?
Update:
This solution will be deployed in a .Net shop, so for now PHP and Java approaches aren't on the table (though I was impressed with the libraries themselves).
We will be receiving documents in csv, .xls, and .xlsx formats that need to be parsed and their data shoved into a DB. We're planning on using the OpenXML SDK for all of the parsing goodness and want to operate over only one file type.
You can achieve this using the Apache POI library for Java.
HSSF is the POI Project's pure Java implementation of the Excel '97(-2007) file format.
XSSF is the POI Project's pure Java implementation of the Excel 2007 OOXML (.xlsx) file format.
I've used it to read in a complete mix of .xls and .xlsx files, and I always output .xlsx.
For .csv files, import using the Super CSV library and export using the Apache POI library above.
The main motivation for Super Csv is to be the best, fastest and most programmer friendly free CSV package for Java.
Or use PHPExcel ( http://www.phpexcel.net ) if you want a PHP solution rather than java
For csv files i would recommend a combination of http://kbcsv.codeplex.com/ to read the csv file into a datatable and EPPPLUS to use its .FromDataTable Method to convert it to an xlsx file.
I works great for me and is very fast.
For reading xls files there is no free Implementation that I know of :(
and you can use for parse columns.
object columnValue = ws.Cells[i, ColIndex, i, ColIndex].Value; // get Specific cell.
you can use below method for .csv, xlsx, .txt files.
public yourReturnType compute()
{
#region .XLSX Section
if (FilePath.FullName.Contains(".xlsx") || FilePath.FullName.Contains(".xls"))
{
// Open and read the XlSX file.
using (var package = new ExcelPackage(FilePath))
{
ExcelWorkbook wb = package.Workbook; // Get the work book in the file
if (wb != null)
{
if (wb.Worksheets.Count > 0)
{
ExcelWorksheet ws = wb.Worksheets.First(); // Get the first worksheet
yourParseCode(ws);
}
} // if End.
} // using end.
}
#endregion
#region .CSV Section
if (FilePath.FullName.Contains(".csv") || FilePath.FullName.Contains(".txt"))
{
CSVParser c = new CSVParser(FilePath);
DataTable dt = c.ReadCSVFile();
using (ExcelPackage pck = new ExcelPackage())
{
ExcelWorksheet ws = pck.Workbook.Worksheets.Add("temporary");
ws.Cells["A1"].LoadFromDataTable(dt, true);
yourParseCode (ws);
////pck.Save(); // no need to save this temporary sheet.
}
}
#endregion
return (yourReturnType );
}