1 files changed, 3 insertions, 1 deletions
diff --git a/col.go b/col.go
index 7fbeeba..d2eba8b 100644
--- a/col.go
+++ b/col.go
@@ -398,7 +398,9 @@ func (f *File) SetColOutlineLevel(sheet, col string, level uint8) error {
 }
 
 // SetColStyle provides a function to set style of columns by given worksheet
-// name, columns range and style ID.
+// name, columns range and style ID. Note that this will overwrite the
+// existing styles for the cell, it won't append or merge style with existing
+// styles.
 //
 // For example set style of column H on Sheet1:
 //