diff --git a/docs/topics/reading-and-writing-to-file.md b/docs/topics/reading-and-writing-to-file.md
index a9f767aa..6b51208e 100644
--- a/docs/topics/reading-and-writing-to-file.md
+++ b/docs/topics/reading-and-writing-to-file.md
@@ -162,6 +162,9 @@ $writer->setPreCalculateFormulas(false);
 $writer->save("05featuredemo.xlsx");
 ```
 
+**Note** Formulas will still be calculated in any column set to be autosized
+even if pre-calculated is set to false
+
 #### Office 2003 compatibility pack
 
 Because of a bug in the Office2003 compatibility pack, there can be some