Does anyone know if it's possible to save an Excel Spreadsheet as a jpg using java? Currently, I am reading and manipulating Excel Spreadsheets in java using Apache POI. It's working great for everything else, but I haven't been able to find an answer to this question in their documentation or online.
There are some commercial libs to do so, another solution would be to use Apache POI to render your Excel as HTML and then convert this to an image utilizing a lib like this java-html2image
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I am working on an application that generates a xdoc output with a series of charts and tables, whose data comes from a given excel file. Currently I have been able to generate the necessary charts and tables managing the data with Apache Poi and generating the actual charts in a separate excel file using GCExcel, nevertheless, Apache does not include support to turn XSSFChart objecs into images in order to insert them into the document, and GCexcel's unlicensed version doesn't allow me to exoprt charts to images either. Anybody knows a way in which I can work around this issue?
Check out Spire.XLS library.
Download the free version here
Read what you can do using the library (features)
Official tutorial
Convert the excel file to image
I am not sure if this will actually work because I did not implement something like this before.
I want to read and append a .xlsm file in java. I dont have any idea on how to do it.
Do i need to download any jar file to work with it?
All the search result provides a solution which uses apache poi(I did not get what it is). I dont use any IDE. Using simple FileReader and other logic can't I work with this type of file?
Please give me a clear idea on what is a .xlsm file and how to work with it using java.
"XLSM is a Microsoft Excel macro-enabled spreadsheet that contains worksheets of cells arranged by rows and columns and embedded macros programmed in the Visual Basic for Applications language. XLSM files are like XLSX files, but with macros enabled. They can be opened with Excel 2007 or later, or by previous versions of Excel with Open XML component support."
You can read and write to the file using Apache poi.
Take a look at the following SO Posts
write to xlsm (Excel 2007) using apache poi
Read data from read only xlsm file using Java Apache POI
The Apache POI documentation is located at
https://poi.apache.org/
I need to create cell comments for existing excel file by extracting the xlsx file and using raw XML file.
Is it possible to do it in java without using Apache poi library?
Well I don't know much about excel but I found this website that might help you.
Are there any libraries out there that can be used to generate line-graphs and export them to a .xls file?
Check out Apache POI (http://poi.apache.org/). However you need to use a limited workaround for this to work.
"You can not [sic] currently create charts. You can however create a chart in Excel, modify the chart data values using HSSF and write a new spreadsheet out. This is possible because POI attempts to keep existing records intact as far as possible." (http://poi.apache.org/spreadsheet/limitations.html)
You could also look into using the JExcelAPI (http://sourceforge.net/projects/jexcelapi/), but I have no familiarity with its limitations.
I need to create spreadsheet in various file format: .xls, .xlsx, .ods, csv. I want to know how can I achieve this in Java and about available open source API.
I found some API for .xls, .xlsx but not .ods. Any information will be very helpful.
Thanks and Regards.
Have you tried the OdfToolkit? I haven't used it but it sounds like something you need.
For pdf generation you can use apache fop and altova stylevision to generate xsl-fo files. For xls - there is apache poi and jxls for templating.
For .ods I am using Simple ODF.
Update
Simple ODF is moved to Apache. New link is here.