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PHPExcel/Documentation/markdown/Overview/03-Creating-a-Spreadsheet.md

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+# PHPExcel Developer Documentation
+
+
+## Creating a spreadsheet
+
+### The PHPExcel class
+
+The PHPExcel class is the core of PHPExcel. It contains references to the contained worksheets, document security settings and document meta data.
+
+To simplify the PHPExcel concept: the PHPExcel class represents your workbook.
+
+Typically, you will create a workbook in one of two ways, either by loading it from a spreadsheet file, or creating it manually. A third option, though less commonly used, is cloning an existing workbook that has been created using one of the previous two methods.
+
+#### Loading a Workbook from a file
+
+Details of the different spreadsheet formats supported, and the options available to read them into a PHPExcel object are described fully in the PHPExcel User Documentation - Reading Spreadsheet Files document.
+
+```php
+$inputFileName = './sampleData/example1.xls';
+
+/** Load $inputFileName to a PHPExcel Object **/
+$objPHPExcel = PHPExcel_IOFactory::load($inputFileName);
+```
+
+#### Creating a new workbook
+
+If you want to create a new workbook, rather than load one from file, then you simply need to instantiate it as a new PHPExcel object.
+
+```php
+/** Create a new PHPExcel Object **/
+$objPHPExcel = new PHPExcel();
+```
+
+A new workbook will always be created with a single worksheet.