Dx80.ce8.2.0-syn213b.rel.pkg

It appears to be one of the following:

: This package serves as the "bridge" to move a DX80 running CE8.x software back to the Android environment. Bug Resolution : It was released to fix a significant bug ( CSCve12723 dx80.ce8.2.0-syn213b.rel.pkg

This is not a consumer-grade file. Treat it like a BIOS update for a $50,000 network switch. It appears to be one of the following: