asp.net(c#) Create Excel Worksheet, do i need Excel installed on the server?

Excel Spreadsheet Software
I have actually produced an application that uses Microsoft.Office.Interop.Excel, in my regional and testing environments whatever worked great, however the app does not work in the production environment. Turns out I have Office installed in your area, as does the Test server, nevertheless, the production server does not have Excel installed. I actually can't return and change my code, nevertheless, I would truly not like to have to install Excel on the production server. Do I have any other choices other than setting up Office Excel on the production server to obtain the application working? Office Interop does need that Office be set up on the server. In the more general case, you do not need Excel to develop worksheets, and you need to avoid any option that requires it…
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Convert a PDF file to image

PDF Document Software
I wished to transform PDF file into image. I was utilizing Ghost4j. Issue: Ghost4J requires gsdll32.dll file at runtime, and I do not desire to use the dll file. Question 1: is there any method, in ghost4j to convert image without the dll? Concern 2: I found the service in PDFBox API. org.apache.pdfbox.pdmodel.PDPagep have methodconvertToImage()' which transforms PDF page to Image format. I have just text on the PDF file. and I have that Exception when I run this code: PDDocument doc = PDDocument.load(new File("/document.pdf")); Listpages = doc.getDocumentCatalog().getAllPages(); PDPage page = pages.get(0); BufferedImage image =page.convertToImage(); File outputfile = new File("/image.png"); ImageIO.write(image, "png", outputfile); doc.close(); You can easily transform pdf file pages into image format. Convert all pdf pages into image format in Java utilizing PDF Box. Jar required pdfbox-1.8.3. container…
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