Se attached Excel document. It is currently being filled by manual data entry, which is a lot of work. The purpose of the application I am developing is to "clone" the "item 1" worksheet 'n' times (say, "item 2" to "item 36") and populate them from an XML file.
I found a bug in the __GetA1Column()__ method of the "__XLCell__" class.
The cell in question is formatted as "Accounting" and contains only a hyphen. The exception occurs when the following operation is attempted:
```
Int32.Parse("-");
```
Comments: ``` XLWorkbook wb = new XLWorkbook(@"C:\Users\Ramon\My Documents\One-Item.xlsx"); IXLWorksheet ws = wb.Worksheet("item 1"); ws.CopyTo("item 2"); wb.Save(); ```