Importing data from Excel

Hi ,

I was trying to import data from excel template to table in ax, i was following the below steps, i am not able to find definition group in Default data. Definition group is there in data export/import, is this same as below mentioned link? please help me its urgent, i am new to ax

Click Administration > Periodic > Data export/import > Default data > Definition group and select the definition group that was created by the Template wizard. Click Import.