diff --git a/README.markdown b/README.markdown
index 3e8b83b..07d4364 100644
--- a/README.markdown
+++ b/README.markdown
@@ -78,23 +78,8 @@ MVN_data_T3MBH.csv - temperature data in channel T3MBH (in Celsius)
 MVN_data_T4MBH.csv - temperature data in channel T4MBH (in Celsius)  
 
 **file data csv fromat:**  
-column 1: date  
-column 2: time  
-column 3 - temperature from sensor channel  
+column 1: timestamp (date and time)  
+column 2: temperature from sensor channel  
 
 ## Contatcs
 For questions about the program, please contact Danila Gamkov, mail: danila_gamkov@cosmos.ru
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