File Formats: Microsoft Excel Spreadsheet (XLSX/XLS) - LeadTools

Imaging Features > File Format Support and Features > File Format Reference: Platform and Extension Support > File Formats: Microsoft Excel Spreadsheet (XLSX/XLS) In This Topic ▼ Features File Constants Platform Support Using Document Writers 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 and manage data such as numbers, formulas, text, and drawing shapes.

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.

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

Features

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

LEADTOOLS uses the XLSX filter to load XLSX files.

LEADTOOLS uses the XLS filter to load XLS files.

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
• Supporting advanced features such as conditional formatting, charts, print scaling, and cell clipping

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

File Constants

The file constants associated with this file format are:

Constant	Read Support	Write Support	Description
Xlsx	24 BPP	N/A	XLSX, Microsoft Excel spreadsheet file format
Xls	24 BPP	See Using Document Writers	XLS, Microsoft Excel 97-2003 spreadsheet file format

Required DLL: Leadtools.Codecs.Xlx.dll or Leadtools.Codecs.Xls.dll. The XLSX file format requires .NET Framework 3.5 or later, as well as the DocumentFormat.OpenXml.dll (ver. 2.0). For a listing of the exact DLLs needed, based on the toolkit version, refer to XLS Format Support and XLSX Format Support

Platform Support

Extension	Module	Value	Win32	Win64	Net32	Net64	Linux	Android	Apple	UWP	MimeType	Friendly Name
Xls	XLS	341	✔	✔	✔	✔	✔	✔	✔	✔	application/vnd.ms-excel	XLS - Microsoft Excel 97-2003 File Format
Xlsx	XLSX	351	✔	✔	✔	✔	✔	✔	✔	✔	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet	XLSX - Microsoft Office Excel File Format

For a complete list for supported file formats, see Summary of All Supported File Formats.

For details of the file formats supported across products and platforms, refer to File Format Comparison Chart.

Using Document Writers

LEADTOOLS supports writing the XLS file format using the LEADTOOLS Document Writers. For more information, refer to LEADTOOLS Document Writers SDK.

For additional support details, refer to the following topics:

• Files to be Included With Your Application:
  • Mandatory DLLs for all .NET, Android, iOS/macOS, HTML5 JavaScript, and Java applications
  • Raster Codecs File Format Support
  • LEADTOOLS DocumentWriters and VirtualPrinter SDKs File Format Support.
• Leadtools.Document.Writer Introduction
• Document Writers: Programming with the LEADTOOLS Document Writers
• File Format Comparison Chart > Document Writers

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