Hi Shivai,
I see a possibility.
Import your excel data into a separate entity containing a string attribute for every column you want to import.
In the settings of the import template your can specify that you also want to import row number 1 ("Import from row number")
In that way you will get one extra object containing the column names.
After the initial import, you can validate the imported data including the column names using a microflow. Next you can parse the strings into the desired data type and put the result into the final target entity.
I hope this helps.