Export-Excel :
* Fixed a typo in the message at line 373.
* Now catch an attempt to both clear the sheet and append to it.
* Fixed some issues when appending to sheets where the header isn't in
row 1 or the data doesn't start in column 1.
* Added support for more settings when creating a pivot chart.
* Corrected a typo PivotTableName was PivtoTableName in definition of
New-PivotTableDefinition
Add-ConditionalFormat and Set-Format added to the parameters so each has
the choice of working more like the other.
Added Set-Row and Set-Column - fill a formula down or across.
Added Send-SQLDataToExcel. Insert a rowset and then call Export-Excel
for ranges, charts, pivots etc
