diff --git a/CSV/CSV_Read_file.ipynb b/CSV/CSV_Read_file.ipynb
index a7e9c6463a..7ef793cf17 100644
--- a/CSV/CSV_Read_file.ipynb
+++ b/CSV/CSV_Read_file.ipynb
@@ -1,4 +1,4 @@
-{
+{
  "cells": [
   {
    "cell_type": "markdown",
@@ -122,7 +122,7 @@
    },
    "outputs": [],
    "source": [
-    "csv_path = \"https://raw.githubusercontent.com/CSSEGISandData/COVID-19/master/csse_covid_19_data/csse_covid_19_time_series/time_series_covid19_confirmed_global.csv\""
+    "csv_path = \"https://raw.githubusercontent.com/CSSEGISandData/COVID-19/master/csse_covid_19_data/csse_covid_19_time_series/time_series_covid19_confirmed_global.csv\"" #path to csv file directory
    ]
   },
   {
@@ -176,7 +176,7 @@
    },
    "outputs": [],
    "source": [
-    "df = pandas.read_csv(csv_path)"
+    "df = pandas.read_csv(csv_path)" #store csv to a dataframe
    ]
   },
   {
diff --git a/CSV/CSV_Save_file.ipynb b/CSV/CSV_Save_file.ipynb
index ca5419d2b2..f52e622cc8 100644
--- a/CSV/CSV_Save_file.ipynb
+++ b/CSV/CSV_Save_file.ipynb
@@ -1,4 +1,4 @@
-{
+{
  "cells": [
   {
    "cell_type": "markdown",
@@ -180,8 +180,8 @@
    },
    "outputs": [],
    "source": [
-    "df = pandas.read_csv(csv_path)\n",
-    "df"
+    "df = pandas.read_csv(csv_path) #store csv to a dataframe\n",
+    "df" #read the stored dataframe
    ]
   },
   {
@@ -224,7 +224,7 @@
    },
    "outputs": [],
    "source": [
-    "df.to_csv(csv_output_path)\n",
+    "df.to_csv(csv_output_path) #convert dataframe to csv\n",
     "print(f'💾 Excel '{csv_output_path}' successfully saved in Naas.')"
    ]
   }