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vendor/phpoffice/phpspreadsheet/docs/index.md

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+# Welcome to PhpSpreadsheet's documentation
+
+![Logo](./assets/logo.svg)
+
+PhpSpreadsheet is a library written in pure PHP and providing a set of
+classes that allow you to read from and to write to different
+spreadsheet file formats, like Excel and LibreOffice Calc.
+
+## File formats supported
+
+|Format                                      |Reading|Writing|
+|--------------------------------------------|:-----:|:-----:|
+|Open Document Format/OASIS (.ods)           |   ✓   |   ✓   |
+|Office Open XML (.xlsx) Excel 2007 and above|   ✓   |   ✓   |
+|BIFF 8 (.xls) Excel 97 and above            |   ✓   |   ✓   |
+|BIFF 5 (.xls) Excel 95                      |   ✓   |       |
+|SpreadsheetML (.xml) Excel 2003             |   ✓   |       |
+|Gnumeric                                    |   ✓   |       |
+|HTML                                        |   ✓   |   ✓   |
+|SYLK                                        |   ✓   |       |
+|CSV                                         |   ✓   |   ✓   |
+|PDF (using either the TCPDF, Dompdf or mPDF libraries, which need to be installed separately)|       |   ✓   |
+
+# Getting started
+
+## Software requirements
+
+PHP version 7.1 or newer to develop using PhpSpreadsheet. Other requirements, such as PHP extensions, are enforced by
+composer. See the `require` section of [the composer.json file](https://github.com/PHPOffice/PhpSpreadsheet/blob/master/composer.json)
+for details.
+
+### PHP version support
+
+Support for PHP versions will only be maintained for a period of six months beyond the end-of-life of that PHP version
+
+## Installation
+
+Use [composer](https://getcomposer.org) to install PhpSpreadsheet into your project:
+
+```sh
+composer require phpoffice/phpspreadsheet
+```
+
+## Hello World
+
+This would be the simplest way to write a spreadsheet:
+
+```php
+<?php
+
+require 'vendor/autoload.php';
+
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+$spreadsheet = new Spreadsheet();
+$sheet = $spreadsheet->getActiveSheet();
+$sheet->setCellValue('A1', 'Hello World !');
+
+$writer = new Xlsx($spreadsheet);
+$writer->save('hello world.xlsx');
+```
+
+## Learn by example
+
+A good way to get started is to run some of the samples. Serve the samples via
+PHP built-in webserver:
+
+```sh
+php -S localhost:8000 -t vendor/phpoffice/phpspreadsheet/samples
+```
+
+Then point your browser to:
+
+> http://localhost:8000/
+
+The samples may also be run directly from the command line, for example:
+
+```sh
+php vendor/phpoffice/phpspreadsheet/samples/Basic/01_Simple.php
+```
+
+## Learn by documentation
+
+For more in-depth documentation, you may read about an [overview of the
+architecture](./topics/architecture.md),
+[creating a spreadsheet](./topics/creating-spreadsheet.md),
+[worksheets](./topics/worksheets.md),
+[accessing cells](./topics/accessing-cells.md) and
+[reading and writing to files](./topics/reading-and-writing-to-file.md).
+
+Or browse the [API documentation](https://phpoffice.github.io/PhpSpreadsheet/master).
+
+# Credits
+
+Please refer to the [contributor
+list](https://github.com/PHPOffice/PhpSpreadsheet/graphs/contributors)
+for up-to-date credits.