private DBHandle openRawDatabaseFile() throws IOException {
		openForUpdate = false; // can't open raw database files for update.
		return new DBHandle(fidFile.getFile());
	}
Opens a FidDb using a raw read-only database file (included with Ghidra in the installation).
@return the database handle for the open database.
@throws IOException
Ghidra/Features/FunctionID/src/main/java/ghidra/feature/fid/db/FidDB.java