## EncryptionType enumeration
Encryption Type. Only used by excel2003. We will encrypt 2007/2010 workbook using SHA AES the same as Excel does, and this EncryptionType will be ignored.
### Values
| Name | Value | Description |
| --- | --- | --- |
| XOR | `0` | XOR encryption algorithm. |
| Compatible | `1` | Office 97/2000 compatible. |
| EnhancedCryptographicProviderV1 | `2` | Enhanced encryption. |
| StrongCryptographicProvider | `3` | Strong encryption algorithm. |