# libxlsxwriter


Libxlsxwriter: A C library for creating Excel XLSX files.


![demo image](http://libxlsxwriter.github.io/demo.png)


## The libxlsxwriter library

Libxlsxwriter is a C library that can be used to write text, numbers, formulas
and hyperlinks to multiple worksheets in an Excel 2007+ XLSX file.

It supports features such as:

- 100% compatible Excel XLSX files.
- Full Excel formatting.
- Merged cells.
- Defined names.
- Autofilters.
- Charts.
- Data validation and dropdown lists.
- Conditional formatting.
- Worksheet PNG/JPEG/GIF images.
- Cell comments.
- Support for adding Macros.
- Memory optimization mode for writing large files.
- Source code available on [GitHub](https://github.com/jmcnamara/libxlsxwriter).
- FreeBSD license.
- ANSI C.
- Works with GCC, Clang, Xcode, MSVC 2015, ICC, TCC, MinGW, MingGW-w64/32.
- Works on Linux, FreeBSD, OpenBSD, OS X, iOS and Windows. Also works on MSYS/MSYS2 and Cygwin.
- Compiles for 32 and 64 bit.
- Compiles and works on big and little endian systems.
- The only dependency is on `zlib`.

Here is an example that was used to create the spreadsheet shown above:


```C
#include "xlsxwriter.h"

int main() {

    /* Create a new workbook and add a worksheet. */
    lxw_workbook  *workbook  = workbook_new("demo.xlsx");
    lxw_worksheet *worksheet = workbook_add_worksheet(workbook, NULL);

    /* Add a format. */
    lxw_format *format = workbook_add_format(workbook);

    /* Set the bold property for the format */
    format_set_bold(format);

    /* Change the column width for clarity. */
    worksheet_set_column(worksheet, 0, 0, 20, NULL);

    /* Write some simple text. */
    worksheet_write_string(worksheet, 0, 0, "Hello", NULL);

    /* Text with formatting. */
    worksheet_write_string(worksheet, 1, 0, "World", format);

    /* Write some numbers. */
    worksheet_write_number(worksheet, 2, 0, 123,     NULL);
    worksheet_write_number(worksheet, 3, 0, 123.456, NULL);

    /* Insert an image. */
    worksheet_insert_image(worksheet, 1, 2, "logo.png");

    workbook_close(workbook);

    return 0;
}

```


See the [full documentation](http://libxlsxwriter.github.io) for the getting
started guide, a tutorial, the main API documentation and examples.

