how to make zip file to install at system

I've backuped system clock app, but after changing new rom I could not install this system clock app.

Attachment 1764996

Please let me know hot to make this file to zip to install at system.
If possible, please make zip file for installing at system.

Attached Files

com.sonyericsson.advancedwidget.clock.7z - [Click for QR Code] (1.95 MB)