Guides
Prerequisites
To load an Iceberg file from S3, both the [`httpfs`](#docs:extensions:httpfs:overview) and [`iceberg`](#docs:extensions:iceberg) extensions are required. They can be installed using the `INSTALL` SQL command. The extensions only need to be installed once.  
```sql
INSTALL httpfs;
INSTALL iceberg;
```  
To load the extensions for usage, use the `LOAD` command:  
```sql
LOAD httpfs;
LOAD iceberg;
```