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/*
* An example of a simple Excel chart using the libxlsxwriter library.
*
* Copyright 2014-2026, John McNamara, jmcnamara@cpan.org
*
*/
#include "xlsxwriter.h"
/* Write some data to the worksheet. */
void write_worksheet_data(lxw_worksheet *worksheet) {
uint8_t data[5][3] = {
/* Three columns of data. */
{1, 2, 3},
{2, 4, 6},
{3, 6, 9},
{4, 8, 12},
{5, 10, 15}
};
int row, col;
for (row = 0; row < 5; row++)
for (col = 0; col < 3; col++)
worksheet_write_number(worksheet, row, col, data[row][col], NULL);
}
/* Create a worksheet with a chart. */
int main() {
lxw_workbook *workbook = workbook_new("chart.xlsx");
lxw_worksheet *worksheet = workbook_add_worksheet(workbook, NULL);
/* Write some data for the chart. */
write_worksheet_data(worksheet);
/* Create a chart object. */
lxw_chart *chart = workbook_add_chart(workbook, LXW_CHART_COLUMN);
/* Configure the chart. In simplest case we just add some value data
* series. The NULL categories will default to 1 to 5 like in Excel.
*/
chart_add_series(chart, NULL, "Sheet1!$A$1:$A$5");
chart_add_series(chart, NULL, "Sheet1!$B$1:$B$5");
chart_add_series(chart, NULL, "Sheet1!$C$1:$C$5");
lxw_chart_font font = {.bold = LXW_EXPLICIT_FALSE, .color = LXW_COLOR_BLUE};
chart_title_set_name(chart, "Year End Results");
chart_title_set_name_font(chart, &font);
/* Insert the chart into the worksheet. */
worksheet_insert_chart(worksheet, CELL("B7"), chart);
return workbook_close(workbook);
}
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