tutorial2.c

<< tutorial1.c

tutorial3.c >>

A tutorial program which is shown, with explanations, in Tutorial 2: Adding formatting to the XLSX File.

/*
 * A simple program to write some data to an Excel file using the
 * libxlsxwriter library.
 *
 * This program is shown, with explanations, in Tutorial 2 of the
 * libxlsxwriter documentation.
 *
 * Copyright 2014-2026, John McNamara, jmcnamara@cpan.org
 *
 */

#include "xlsxwriter.h"

/* Some data we want to write to the worksheet. */
struct expense {
    char item[32];
    int  cost;
};

struct expense expenses[] = {
    {"Rent", 1000},
    {"Gas",   100},
    {"Food",  300},
    {"Gym",    50},
};


int main() {

    /* Create a workbook and add a worksheet. */
    lxw_workbook  *workbook  = workbook_new("tutorial02.xlsx");
    lxw_worksheet *worksheet = workbook_add_worksheet(workbook, NULL);
    int row = 0;
    int col = 0;
    int i;

    /* Add a bold format to use to highlight cells. */
    lxw_format *bold = workbook_add_format(workbook);
    format_set_bold(bold);

    /* Add a number format for cells with money. */
    lxw_format *money = workbook_add_format(workbook);
    format_set_num_format(money, "$#,##0");

    /* Write some data header. */
    worksheet_write_string(worksheet, row, col,     "Item", bold);
    worksheet_write_string(worksheet, row, col + 1, "Cost", bold);

    /* Iterate over the data and write it out element by element. */
    for (i = 0; i < 4; i++) {
        /* Write from the first cell below the headers. */
        row = i + 1;
        worksheet_write_string(worksheet, row, col,     expenses[i].item, NULL);
        worksheet_write_number(worksheet, row, col + 1, expenses[i].cost, money);
    }

    /* Write a total using a formula. */
    worksheet_write_string (worksheet, row + 1, col,     "Total",       bold);
    worksheet_write_formula(worksheet, row + 1, col + 1, "=SUM(B2:B5)", money);

    /* Save the workbook and free any allocated memory. */
    return workbook_close(workbook);
}