Parameters
- row
- Starting column header row index, or -1 for all column header rows
- column
- Starting column index, or -1 for all columns
- rowCount
- Number of column header rows, or -1 for all column header rows (may create new column header rows as needed)
- columnCount
- Number of columns, or -1 for all columns
- value
- Tab-delimited string to set into the range