# Standard properties

Write standard document properties through the associative array passed to `Excel::setProperties`. All keys are optional; missing keys are not written.

## Function Prototype

```php
setProperties(array $properties): self
```

### **array $properties**

> Supported keys:
>
> * `title` — title
> * `subject` — subject
> * `author` — author
> * `manager` — manager
> * `company` — company
> * `category` — category
> * `keywords` — keywords
> * `comments` — comments
> * `status` — status
> * `hyperlink_base` — hyperlink base
> * `created` — creation time, **Unix timestamp** (integer seconds). Defaults to the current time when omitted.

## Example

```php
$config = [
    'path' => './tests'
];

$fileObject = new \Vtiful\Kernel\Excel($config);
$fileObject = $fileObject->fileName('tutorial.xlsx');

$filePath = $fileObject->header(['name', 'age'])
    ->data([
        ['viest', 21],
        ['wjx',   21]
    ])
    ->setProperties([
        'title'    => 'Q1 Report',
        'subject'  => 'Sales',
        'author'   => 'viest',
        'manager'  => 'wjx',
        'company'  => 'Vtiful',
        'category' => 'Finance',
        'keywords' => 'sales, q1, 2025',
        'comments' => 'Generated by xlswriter',
        'status'   => 'Draft',
        'created'  => time(),
    ])
    ->output();
```


---

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