Android Files Extensions - What are android files and how do I open a android file?

What are android files and how do I open a android file?

File Type Category File Format
.db-shm Android Files SQLite Database Shared Memory File
.db-wal Android Files SQLite Database Write-Ahead Log File
.ius Android Files InfoTMIC Firmware Update File
.pak Android Files PAK (Packed) File
.sbf Android Files Android System File
.webarchivexml Android Files Android Web Browser Archive