# Accès externe et Binaire

### Dans cette section

* [ConvertFromBinary](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/7.3/convertfrombinary-function)
* [ExtractBytes](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/7.3/extractbytes-function)
* [GetBytesFromURL](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/7.3/getbytesfromurl-function)