To import articles from an Excel sheet we will go to:
Tools → Importers → Import articles
We will open the following window we will see the options to import Excel clients that must be in CSV format to be able to import:
As we can verify, here we must select the fields that we want to process and we must indicate its position in the Excel file that we are going to import
To import the Excel file into CSV format we must select the file by pressing "Seleccionar archivo".
Once the file is selected, you can press
or 
. If we click 
.
The clients file will be imported directly and if we click 
We can see how the customers will be imported and if all the fields are correctly, this gives us the option to modify some field that is incorrect before Import directly.