// Then is the header - check for encrypted
if(_contents[12] == encHeaderToken[0] &&
_contents[13] == encHeaderToken[1] &&
_contents[14] == encHeaderToken[2] &&
_contents[15] == encHeaderToken[3]) {
throw new EncryptedPowerPointFileException("The CurrentUserAtom specifies that the document is encrypted");
}
// Grab the edit offset
currentEditOffset = LittleEndian.getUInt(_contents,16);