This file originates from package/apps/TimeZoneData/oem_template/data_app_prebuilt. OEM-INSTRUCTION See below for the purpose of this directory and changes OEMs must make. This directory contains a suggested structure for including prebuilt .apks in the system image and tests. For example, you can copy it cp -r data_app_prebuilt ${ANDROID_BUILD_TOP}/vendor/oemcorp/apps/TimeZoneDataPrebuilt Where is your company name. ...then read / change all the things marked with OEM-INSTRUCTION. The intended use is to include .apk artifacts built using the oem_template/data_app. The targets define includes the real version of the app, and some test versions that can be used by the supplied xTS tests. See oem_template/xts for rules that can be used for xTS testing.