# Specifying all Components of a Type

:::note
The Ant Migration Tool is retired with Spring ’24. The tool continues to function as-is for future API versions but isn’t updated with new functionality and isn’t supported. If Salesforce adds a new feature that is incompatible with Ant, the Ant Migration Tool won't be updated to support it. To manage metadata changes, switch to Salesforce CLI for a modern, supported developer experience.
:::

To retrieve all components of a particular type, use the wildcard symbol (\*). For example, to retrieve all custom objects:

```xml
<?xml version="1.0" encoding="UTF-8"?>
<Package xmlns="http://soap.sforce.com/2006/04/metadata">
    <types>
        <members>*</members>
        <name>CustomObject</name>
    </types>
    <version>68.0</version>
</Package>
```

The wildcard symbol does not apply to all metadata types. For example, using the wildcard with the `CustomObject` type name will not retrieve standard objects. To retrieve a standard object, you must explicitly name the object in package.xml. Likewise, if you want to retrieve custom fields defined on standard objects, you must name the object and field.