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tutorial3.c
<< tutorial2.c dates_and_times01.c >>

A tutorial program which is shown, with explanations, in Tutorial 3: Writing different types of data to the XLSX File.

tutorial03.png
/*
* A simple program to write some data to an Excel file using the
* libxlsxwriter library.
*
* This program is shown, with explanations, in Tutorial 3 of the
* libxlsxwriter documentation.
*
* Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
*
*/
#include "xlsxwriter.h"
/* Some data we want to write to the worksheet. */
struct expense {
char item[32];
int cost;
lxw_datetime datetime;
};
struct expense expenses[] = {
{"Rent", 1000, { .year = 2013, .month = 1, .day = 13 } },
{"Gas", 100, { .year = 2013, .month = 1, .day = 14 } },
{"Food", 300, { .year = 2013, .month = 1, .day = 16 } },
{"Gym", 50, { .year = 2013, .month = 1, .day = 20 } },
};
int main() {
/* Create a workbook and add a worksheet. */
lxw_workbook *workbook = workbook_new("tutorial03.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);
/* Add a number format for cells with money. */
lxw_format *money = workbook_add_format(workbook);
format_set_num_format(money, "$#,##0");
/* Add an Excel date format. */
lxw_format *date_format = workbook_add_format(workbook);
format_set_num_format(date_format, "mmmm d yyyy");
/* Adjust the column width. */
worksheet_set_column(worksheet, 0, 0, 15, NULL);
/* 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_datetime(worksheet, row, col + 1, &expenses[i].datetime, date_format);
worksheet_write_number (worksheet, row, col + 2, 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 + 2, "=SUM(C2:C5)", money);
/* Save the workbook and free any allocated memory. */
return workbook_close(workbook);
}