With the introduction of skin as a extension on dotnetnuke 5.x its easier to package both skins and containers on a single installation file using manifest file.

On dnn 4.x versions and previous version it is also possible but differently.

Steps to package both skin and container file on a single installer.

1. Create different zip files for skin and container. For skin name it Skins.zip and for cotainer name it Containers.zip.

2. Package Skins.zip and Containers.zip file on another zip. For eg: MySkin.zip. Now MyZip.zip contains Skins.zip and Containers.zip files.

3. Now install the main zip file using the skin uploader.