Overview
Atlassian Sourcetree is a free Git and Mercurial client for Windows.
Atlassian Sourcetree is a free Git and Mercurial client for Mac.
NAME Zug::XLSX::Huge - build large xlsx files without running out of RAM VERSION Version 0.02 SYNOPSIS #!/usr/bin/env perl use strict; use warnings; use Zug::XLSX::Huge; my $columns = [ { type => 'inlineStr', column_name => 'Some String' }, { type => 'inlineStr', column_name => 'Some Other String' }, { type => 'number', column_name => 'A Number' }, { type => 'number', column_name => 'Another Number' }, ]; my ( $worksheet_builder, $finish_workbook ) = Zug::XLSX::Huge::make_callbacks( { filename => '/tmp/' . time() . '.xlsx', } ); my $worksheet_number = 1; # first worksheet my ( $add_row_to_first_worksheet, $finish_worksheet ) = $worksheet_builder->($worksheet_number, { worksheet_name => 'first worksheet', columns => $columns, }); my $other_columns = [ { type => 'inlineStr', column_name => 'Some String' }, { type => 'inlineStr', column_name => 'Some Other String' }, { type => 'number', column_name => 'A Number' }, { type => 'number', column_name => 'Another Number' }, { type => 'number', column_name => 'Yet Another Number' }, { type => 'number', column_name => 'And Yet Another Number' }, ]; #second worksheet my ( $add_row_to_second_worksheet, $finish_second_worksheet ) = $worksheet_builder->(2, { worksheet_name => 'second worksheet', columns => $other_columns, }); my $max = 100; my $count = 0; while ( $count < $max ) { $add_row_to_first_worksheet->( 'a', 'b', $count, $count + 1 ); $add_row_to_second_worksheet->('y', 'z', 30 % ($count + 1) , $count % 30, $count/15, $count*2); $count++; } $finish_worksheet->(); $finish_second_worksheet->(); $finish_workbook->(); STATUS Zug::XLSX::Huge is in early alpha stage, there are no unit tests or automatic tests, just a test script which must be run manually; no optimization attempted so far. Some xml elements in the files generated might not be really needed and will be removed. DESCRIPTION I don't intend to extend it to be a competitor for Excel::Writer::XLSX and Zug::XLSX::Huge will always build very basic XLSX files. If you need to build XLSX files please use Excel::Writer::XLSX. Excel::Writer::XLSX also has the "set_optimization()" method to turn on RAM usage optimization with a few drawbacks which also apply to this module. I wrote Zug::XLSX::Huge to answer to a very special need: building huge excel files while using a predictable amount of RAM. To achieve this the files will not contain shared strings (unless you already know which strings should be shared -- feature still pending) and the files generated will most likely be larger than they could be when built with Excel::Writer::XLSX. LIMITATIONS As of now Zug::XLSX::Huge supports only numeric values and inline strings. No formatting is possible. TODO split data automatically over multiple worksheets when a row count is reached shared strings row bufferring controlled RAM usage basic cell formatting (very low priority feature) formulas (very low priority feature) AUTHOR Emil Nicolaie Perhinschi, "<emilper at gmail.com>" BUGS Please report any bugs or feature requests at https://github.com/emil-perhinschi/zug-xlsx-huge. LICENSE AND COPYRIGHT Copyright 2015 Emil Perhinschi. This program is free software; you can redistribute it and/or modify it under the terms of the the Artistic License (2.0). You may obtain a copy of the full license at: <http://www.perlfoundation.org/artistic_license_2_0> Any use, modification, and distribution of the Standard or Modified Versions is governed by this Artistic License. By using, modifying or distributing the Package, you accept this license. Do not use, modify, or distribute the Package, if you do not accept this license. If your Modified Version has been derived from a Modified Version made by someone other than you, you are nevertheless required to ensure that your Modified Version complies with the requirements of this license. This license does not grant you the right to use any trademark, service mark, tradename, or logo of the Copyright Holder. This license includes the non-exclusive, worldwide, free-of-charge patent license to make, have made, use, offer to sell, sell, import and otherwise transfer the Package with respect to any patent claims licensable by the Copyright Holder that are necessarily infringed by the Package. If you institute patent litigation (including a cross-claim or counterclaim) against any party alleging that the Package constitutes direct or contributory patent infringement, then this Artistic License to you shall terminate on the date that such litigation is filed. Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.