[yocto] How to extract files from wic.gz image?

[JH]

Hi,

What command and tools to extract files from Yocto / bitbake image
such as dev-image-20190528085324.rootfs.wic.gz?

I am using IMX UUU to install dev-image-20190528085324.rootfs.wic.gz
to IMX, I was advised to extract the archive and use "uuu <script
name>" or "uuu u-boot-dtb.imx" to get bootloader work first.

Thank you.

- jupiter