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Convert .xltm to .xlsm using apache poi

981207Nov 25 2016 — edited Nov 25 2016

Dear All,

i am using jdeveloper version of 12.1.3.0 and poi version of 3.9.

I have a template named Test.xltm in my database.On click of download button i want to convert the Test.xltm to Test.xlsm.

Default extension given is Test .xls and it is downloading without any issues.

But when i change the filename (Test.xlsm) in business logic, i am getting invalid file format or file corrupted while opening the file .

Below is my code :

String filename=Test.xls;

ExternalContext econtext = facesContext.getExternalContext();
HttpServletResponse response = (HttpServletResponse) econtext.getResponse();

Sheet sheet;

response.setContentType("application/force-download");

response.setHeader("Content-Disposition", "attachment;filename=\"" + filename + "\"");

BlobDomain template = (BlobDomain) ExcelRowvo.getAttribute("Template");  ----> getting .xltm template

InputStream is = template.getInputStream();

Workbook workbook = new XSSFWorkbook(OPCPackage.create(filename));  ----->creating .xlsm file

sheet = workbook.getSheetAt(0);

is.read();

please tell me how to write .xltm to .xlsm for downloading the file as Test.xlsm

Thanks

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Locked on Dec 23 2016
Added on Nov 25 2016
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