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Spire.XLS for .NET


Spire.XLS for .NET is a professional Excel .NET API that can be used to create, read, write, convert and print Excel files in any type of .NET ( C#, VB.NET, ASP.NET, .NET Core, .NET 5.0, .NET 6.0, MonoAndroid and Xamarin.iOS) application. Spire.XLS for .NET offers object model Excel API for speeding up Excel programming in .NET platform – create new Excel documents from template, edit existing Excel documents and convert Excel files.


Brand: E-iceblue
Operating system: Windows
Language: English



This Professional .NET Excel API is a standalone Excel .NET managed assembly and does not depend on Microsoft Office Excel. Spire.XLS for .NET offers support both for the old Excel 97-2003 format (.xls) and for the new Excel 2007, Excel 2010, Excel 2013, Excel 2016 and Excel 2019 (.xlsx, .xlsb, .xlsm), along with Open Office(.ods) format. It features fast and reliably compared with developing your own spreadsheet manipulation solution or using Microsoft Automation.

Spire.XLS for .NET enjoys good reputation in both enterprise and individual customers. These customer types include Banks, Data processing houses, Educational institutions, Government organizations, Insurance firms, Legal institutions, Postal/cargo services and etc.

Main Functions

100% Standalone, NET API – No Microsoft Office Automation
Spire.XLS for .NET is a 100% standalone Excel .NET API that allows developers to create, manage and manipulate Excel spreadsheets without requiring Microsoft Excel or Microsoft Office to be installed on the system. In addition, Spire.XLS for .NET is a better alternative to Office Automation in terms of security, stability, scalability, speed, price and features.

Powerful & High Quality Excel File Conversion
Spire.XLS for .NET supports converting files from Excel to PDF, Excel to HTML, HTML to Excel, Excel to CSV, Excel to Text, Excel to Image, Excel to XML, Excel to SVG, Excel to UOS, Excel to OFD, Excel to PostScript and Excel to XPS. And on the other hand, most of popular files can be transferred to Excel back.

Create Excel Report from Comprehensive Workbook Designer
Generate Excel workbook from scratch, or load a workbook from either folder or file stream. Developers can also save it to file, file stream or web response. Spire.XLS for .NET offers a wide range of security features including Excel encryption/decryption, digital signature, tracking changes, cell hide/unhide, worksheet lock/unlock.

Freely Operate worksheet
Spire.XLS for .NET enables developers to create, add, delete, rename, edit and move worksheet in either C#, VB.NET or ASP.NET. Developers can also copy, transpose, and consolidate across worksheets with full contents. This professional Excel .NET class library also embeds many flexible options for displaying worksheets, such as page breaks, zoom-setting, freeze panes, headers/footers, Print excel files, print paper size and print area etc.

Easily Manipulate cells & Excel Calculation Engine at run time
Developers can easily manipulate Excel cells and Evaluate formula value in C#, VB.NET or ASP.NET at runtime. Super-fast, scalable excel calculation engine is compatible with the 97-2003/2007/2010/2013/2016/2019 Excel. Cell Styles are supported by this Excel .NET API, such as cell merging/unmerging, text wrapping/unwrapping, text alignment, rotation, interior, borders, lock/unlock and etc. Font formats, like setting font type, size, color, bold, italic, strikeout and underlining etc. is also fully supported. Conditional formatting, text search and replace, filter and data validation can be applied to cells as easily as you expect.

Chart, Data and other Elements
Spire.XLS for .NET provides a wide range of Chart: Pie Chart, Bar Chart, Column Chart, Line Chart, Radar Chart and etc. This Excel .NET API also supports data transportation between database and Excel in C# VB.NET or ASP.NET. Hyperlinks and templates are also supported by Spire.XLS for .NET.

Pro Edition
Spire.XLS Pro Edition supports converting files from Excel to PDF, HTML, Excel to CSV, Excel to Text, Excel to Image and Excel to XML(the Excel can be either .XLS or .XLSX) and it is included in Spire.XLS Pack.

Standard Edition
Spire.XLS for .NET Standard Edition only can be used for .NET and doesn’t support print and conversion function.
Standard Edition doesn’t work on .NET Core.


Version comparison

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