Fails parsing row with spreadsheetDrawing

[seeker25]

Tries to parse the row number for an image http://schemas.openxmlformats.org/drawingml/2006/spreadsheetDrawing

This causes an exception when trying to get rows.

Would recommend filtering out spreadsheetDrawing rows. Unless these are to be parsed.

[Sibz]

I can look into this on Tuesday

[Sibz]

Just looking into this now, sorry for the delay. I am thinking there are other special cases other than spreadsheetDrawing that produce rows with no cells.
Perhaps another way is to filter out rows with no cells, essentially treating them as if they weren't there, after-all this library is for fast access of data. The downside would be there is no access to the underlying data if in the rare case it was wanted. For example, the number 23 above refers to a separate file where the data is. I imagine anyone using this library won't be needing to reconstruct drawings, graphs, etc..

I'll put that to @mrjono1 to decided if this is the right approach to take.

Meanwhile if that is what you need, you can find it in my branch:
https://github.com/Sibz/FastExcel/tree/Skip-Empty-Rows

Let me know how test goes.