Lists possible errors which occur while attempting to load a password protected encrypted workbook.
Indicates that an .xls binary file is encrypted and you should set the XlsDocumentImporterOptions.Password property to a password string.
The password specified by the XlsDocumentImporterOptions.Password property is incorrect.
Indicates that the encryption type is not supported. Only the RC4 encryption algorithm is implemented for binary files (XLS). Other encryption methods (XOR obfuscation and RC4 CryptoAPI) are not supported for XLS files.
Indicates that the document being loaded did not pass the HMAC verification.
The SpreadsheetDecryptionError enumeration is used to specify the error type for the SpreadsheetDecryptionException.Error property.