diff --git a/DataGuide_AAPF_HSI.md b/DataGuide_AAPF_HSI.md
index 6229a4a..7609768 100644
--- a/DataGuide_AAPF_HSI.md
+++ b/DataGuide_AAPF_HSI.md
@@ -96,6 +96,11 @@ The definition of column headers and corresponding values mostly originates from
 ### How to Read Animated GIF Files Containing VNIR-SWIR Coregistration Quality Info
 
 
+| Side view                      | Top-down view                                                                            |
+|--------------------------------|-------------------------------------------------------------------------------------------------|
+| `header path`        | File path to the header file                                                                    |
+
+