libxlsxwriter/examples/tutorial1.c

/*
 * A simple program to write some data to an Excel file using the
 * libxlsxwriter library.
 *
 * This program is shown, with explanations, in Tutorial 1 of the
 * libxlsxwriter documentation.
 *
 * Copyright 2014-2025, 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("tutorial01.xlsx");
    lxw_worksheet *worksheet = workbook_add_worksheet(workbook, NULL);

    /* Start from the first cell. Rows and columns are zero indexed. */
    int row = 0;
    int col = 0;

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

    /* Write a total using a formula. */
    worksheet_write_string (worksheet, row, col,     "Total",       NULL);
    worksheet_write_formula(worksheet, row, col + 1, "=SUM(B1:B4)", NULL);

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