ExtractPart Method
Reads the contents of the currently selected part.
Syntax
officedoc.extractPart([callback])
Callback
The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).
The callback for this method is defined as:
function(err){ }
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'err' has 2 properties which hold detailed information:
err.code err.message
Remarks
If the part specified by the PartName property exists, the corresponding physical file will be extracted from the archive and will be available through the PartData property.
If the part doesn't exists, or it's stored in interleaved format, an error will be raised.