File Formats: Microsoft Excel Spreadsheet (XLSX/XLS)

The XLSX and XLS file extensions are used for Microsoft Excel spreadsheets, part of the Microsoft Office Suite of software.

XLSX/XLS files are used to store data such as numbers, formulas, text, and drawing shape.

XLSX is part of Microsoft Office Open XML specification (also known as OOXML or OpenXML) and was introduced with Office 2007. XLSX is a zipped, XML-based file format. Microsoft Excel 2007 and later uses XLSX as the default file format when creating a new spreadsheet. Support for loading and saving legacy XLS files is also included.

XLS is the default format used with Office 97-2003. XLS is a Microsoft proprietary Binary Interchange File Format. Microsoft Excel 97-2003 uses XLS as the default file format when creating a new document. Support for loading and saving XLSX files can be added using an add-in.

Note: XLSX and XLS file formats are supported in the Document/Medical products.

LEADTOOLS supports all the flavors of the Microsoft Excel spreadsheet format, from Office 97 XLS up to today's XLSX.

LEADTOOLS supports loading XLSX files through the XLSX filter.

LEADTOOLS supports loading XLS files through the XLS filter.

Additional features supported by LEADTOOLS:

• Loading XLSX/XLS files as a raster image or SVG (Scalable vector graphics) document
• Loading files with different DPI
• Loading files with different page width and height
• Loading documents with different rasterization options
• Advanced features such as conditional formatting, charts, print scaling, and cell clipping

The default extension used by this format is: XLSX or XLS.

The file constants associated with this file format are:

Required DLL: Leadtools.Codecs.Xlx.dll or Leadtools.Codecs.Xls.dll. The XLSX file format requires .NET Framework 3.5 or later and the DocumentFormat.OpenXml.dll (ver. 2.*). For a listing of the exact DLLs needed, based on the toolkit version, refer to Files To Be Included With Your Application.

LEADTOOLS supports writing/saving using LEADTOOLS Document Writers. For additional support details, refer to the following:

• Files to be Included With Your Application:
  • LEADTOOLS SDK DLLs (Required in all cases, unless specified as optional)
  • LEADTOOLS SDK Filter DLLs (Filter specific)
  • (*) LEADTOOLS SDK Document Writers DLLs (File format specific )
• Leadtools.Document.Writer Introduction
• Document Writers: Programming with the LEADTOOLS Document Writers
• File Format Comparison Chart > Document Writers