Fix out of range panic when removing formula.

Fix file corruption issue when deleting a sheet containing a formula.

1 files changed, 1 insertions, 1 deletions

diff --git a/cell.go b/cell.go
index a1b6dbf..36f2d93 100644
--- a/cell.go
+++ b/cell.go
@@ -235,7 +235,7 @@ func (f *File) SetCellFormula(sheet, axis, formula string) error {
 	}
 	if formula == "" {
 		cellData.F = nil
-		f.deleteCalcChain(axis)
+		f.deleteCalcChain(f.GetSheetIndex(sheet), axis)
 		return err
 	}