PicoXLSX

PicoXLSX is a small .NET / C# library to create XLSX files (Microsoft Excel 2007 or newer) in an easy and native way

No dependencies (*
No need for an installation of Microsoft Office
No need for Office interop libraries
No need for 3rd party libraries
No need for an installation of the Microsoft Open Office XML SDK (OOXML)

What's new in version 2.x

Complete replacement of the old style handling
Added more options to assign styles to cells
Added an option for sanitizing of worksheet names
Replaced specific exception classes with general exceptions (e.g. StyleException, FormatException or WorksheetException)
Added functions to retrieve stored data and the current cell address
Many internal optimizations and additional documentation

Requirements

PicoXLSX was created with .NET version 4.5 and upgraded to 4.6.1. But older versions like 3.5 and 4.0 may also work with minor or no changes. However, this was not tested yet.

*) The only requirement to compile the library besides .NET is the assembly WindowsBase. This assembly is a standard component in all Microsoft Windows systems (except Windows RT systems). If your IDE of choice supports referencing assemblies from the Global Assembly Cache (GAC) of Windows, select WindowsBase from there. If you want so select the DLL manually and Microsoft Visual Studio is installed on your system, the DLL can be found most likely under "c:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\WindowsBase.dll", according to this MSDN Blog entry. Otherwise you find it in the GAC, under "c:\Windows\Microsoft.NET\assembly\GAC_MSIL\WindowsBase".

If you want to compile the documentation project (folder: Documentation; project file: shfbproj), you need also the Sandcastle Help File Builder (SHFB). It is also freely available. But you don't need the documentation project to build the PicoXLSX library.

Installation

As DLL

Simply place the PicoXLSX DLL into your .NET project and add a reference (in VS or SharpDevelop) to it. Please keep in mind that the .NET version of your solution must match with the runtime version of the PicoXLSX DLL (currently compiled with 4.6.1).

As source files

Place all .CS files from the PicoXLSX source folder into your project. You can place them into a sub-folder if you wish. The files contains definitions for workbooks, worksheets, cells, styles, meta-data, low level methods and exceptions.

Usage

Quick Start

 Workbook workbook = new Workbook("myWorkbook.xlsx", "Sheet1");         // Create new workbook with a worksheet called Sheet1
 workbook.CurrentWorksheet.AddNextCell("Some Data");                    // Add cell A1
 workbook.CurrentWorksheet.AddNextCell(42);                             // Add cell B1
 workbook.CurrentWorksheet.GoToNextRow();                               // Go to row 2
 workbook.CurrentWorksheet.AddNextCell(DateTime.Now);                   // Add cell A2
 workbook.Save();                                                       // Save the workbook as myWorkbook.xlsx

Further References

See the full API-Documentation at: https://rabanti-github.github.io/PicoXLSX/.
The Demo project contains nine simple use cases. You can find also the full documentation in the Documentation-Folder or as C# documentation in the .CS files.
See also: Getting started in the Wiki

visualczm/PicoXLSX