Created Unassigned: Style.Border.InsideBorder always work at 1st worksheet [9440]

```
ws.Range(row1, col1, row2, col2).Style.Border.InsideBorder = XLBorderStyleValues.Thin;
```
always work at 1st worksheet.

```
ws.Cell(row1, col1).Style.Border.InsideBorder = XLBorderStyleValues.Thin;
```
is same(always work at 1st worksheet).

Now I'm coding
```
ws.Range(row1, col1, row1, col1).Style.Border.OutsideBorder = XLBorderStyleValues.Thin;
```
for each cell.

Thank you.