This property can be used to select which document will be
imported when calling ImportAny. In most cases only a
single document is available in any file and this property is
ignored. However in some cases, such as Microsoft Excel, a single
workbook contains multiple worksheets. This property will select
which Excel worksheet will be imported.
When it is set to zero or a negative value, the entire Excel
workbook will be imported. This is the default case. When it is set
to any positive value the corresponding worksheet will be imported.
Indexing is one-based so set it to one to print the first worksheet
and so on. It is up to you to make sure that you set it to a valid
value, less than or equal to the total number of worksheets in the
For applications other than Microsoft Excel this property is