Convert CSV Files to XLS in Java

Empower your Java applications with document conversion features across 135+ popular image and file formats without requiring any additional software.

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GroupDocs.Conversionfor Java

About GroupDocs.Conversion for Java API

GroupDocs.Conversion for Java is an advanced file formats conversion API to convert between popular images and document formats like Microsoft Office, OpenDocument, PDF, HTML, Email, CAD and many more using a few lines of code. The native API auto-detects the source document formats and offers a plenty of options to customize the converted documents. Along with the document information-extraction feature, it also supports caching conversion result to the local disk by default. However any type of cache storage can be supported by implementing appropriate interfaces – Amazon S3, Dropbox, Google Drive, Windows Azure, Reddis or any other.

Steps for Converting CSV to XLS in Java

GroupDocs.Conversion makes it easy for developers to convert the CSV file to XLS in few lines of code.

  • Create a new instance of Converter class and load the CSV file with full path
  • Set ConvertOptions for the XLS document type
  • Call the convert() method and pass the document name (full path) and format (XLS) as parameter

System Requirements

A basic conversion with GroupDocs.Conversion for Java APIs can be done with just a few lines of code. Our APIs are supported on all major platforms and operating systems. Before executing the code below, please make sure that you have the following prerequisites installled on your system.

  • Operating Systems: Microsoft Windows, Linux, MacOS
  • Development Environment: NetBeans, Intellij IDEA, Eclipse etc
  • Java Runtime Environment: J2SE 6.0 and above
  • Get the latest version of GroupDocs.Conversion for Java from Maven
 

CSV to XLS conversion using Java

// Load the source CSV file to be converted
Converter converter = new Converter("input.csv");
// Get the convert options ready for the target XLS format
ConvertOptions convertOptions = new FileType().fromExtension("xls").getConvertOptions();
// Convert to XLS format
converter.convert("output.xls", convertOptions);

CSV to XLS Live Demos

Convert CSV to XLS right now by visiting GroupDocs.Conversion Live Demos website.
The live demo has the following benefits

  No need to download GroupDocs API.
  No need to write any code.
  Just upload your CSV file, it will be converted instantly to XLS.
  You will get the download link.
 

CSV About CSV File Format

Files with CSV (Comma Separated Values) extension represent plain text files that contain records of data with comma separated values. Each line in a CSV file is a new record from the set of records contained in the file. Such files are generated when data transfer is intended from one storage system to another. Since all applications can recognize records separated by comma, import of such data files to database is done very conveniently. Almost all spreadsheet applications such as Microsoft Excel or OpenOffice Calc can import CSV without much effort. Data imported from such files is arranged in cells of a spreadsheet for representation to user.

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XLS About XLS File Format

Files with XLS extension represent Excel Binary File Format. Such files can be created by Microsoft Excel as well as other similar spreadsheet programs such as OpenOffice Calc or Apple Numbers. File saved by Excel is known as Workbook where each workbook can have one or more worksheets. Data is stored and displayed to users in table format in worksheet and can span numeric values, text data, formulas, external data connections, images, and charts. Applications like Microsoft Excel lets you export workbook data to several different formats including PDF, CSV, XLSX, TXT, HTML, XPS, and several others. The XLS file format was replaced with a more open and structured format, XLSX, with the release of Microsoft Excel 2007. The latest versions still provide support for creating and reading XLS files, though XLSX is the first choice of use now.

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Other Supported Conversions

You can also convert CSV into many other file formats. Please see the complete list below.

CSV TO EPUB (Digital E-Book File Format)
CSV TO XPS (Open XML Paper Specification)
CSV TO TEX (LaTeX Source Document)
CSV TO PPT (PowerPoint Presentation)
CSV TO PPS (Microsoft PowerPoint Slide Show)
CSV TO PPTX (PowerPoint Open XML Presentation)
CSV TO PPSX (PowerPoint Open XML Slide Show)
CSV TO ODP (OpenDocument Presentation File Format)
CSV TO OTP (Origin Graph Template)
CSV TO POTX (Microsoft PowerPoint Open XML Template)
CSV TO POTM (Microsoft PowerPoint Template)
CSV TO PPTM (Microsoft PowerPoint Presentation)
CSV TO PPSM (Microsoft PowerPoint Slide Show)
CSV TO XLS (Microsoft Excel Binary File Format)
CSV TO XLSX (Microsoft Excel Open XML Spreadsheet)
CSV TO XLSM (Microsoft Excel Macro-Enabled Spreadsheet)
CSV TO XLSB (Microsoft Excel Binary Spreadsheet File)
CSV TO ODS (Open Document Spreadsheet)
CSV TO XLTX (Microsoft Excel Open XML Template)
CSV TO XLTM (Microsoft Excel Macro-Enabled Template)
CSV TO TSV (Tab Separated Values File)
CSV TO XLAM (Microsoft Excel Macro-Enabled Add-In)
CSV TO CSV (Comma Separated Values File)
CSV TO DOC (Microsoft Word Document)
CSV TO DOCM (Microsoft Word Macro-Enabled Document)
CSV TO CSV (Microsoft Word Open XML Document)
CSV TO DOT (Microsoft Word Document Template)
CSV TO DOTM (Microsoft Word Macro-Enabled Template)
CSV TO DOTX (Word Open XML Document Template)
CSV TO RTF (Rich Text File Format)
CSV TO ODT (Open Document Text)
CSV TO OTT (Open Document Template)
CSV TO TXT (Plain Text File Format)
CSV TO MD (Markdown)
CSV TO TIFF (Tagged Image File Format)
CSV TO TIF (Tagged Image File Format)
CSV TO JPG (Joint Photographic Expert Group Image File)
CSV TO JPEG (JPEG Image)
CSV TO PNG (Portable Network Graphic)
CSV TO GIF (Graphical Interchange Format File)
CSV TO BMP (Bitmap File Format)
CSV TO ICO (Microsoft Icon File)
CSV TO PSD (Adobe Photoshop Document)
CSV TO WMF (Windows Metafile)
CSV TO EMF (Enhanced Metafile Format)
CSV TO WEBP (Raster Web Image File Format)
CSV TO SVG (Scalable Vector Graphics File)
CSV TO JP2 (JPEG 2000 Core Image File)
CSV TO EMZ (Enhanced Windows Metafile Compressed)
CSV TO WMZ (Windows Metafile Compressed)
CSV TO HTML (Hyper Text Markup Language)
CSV TO MHT (MIME Encapsulation of Aggregate HTML)
CSV TO MHTML (MIME Encapsulation of Aggregate HTML)