Hello Alteryx community ! 
I want to make a matching test between 2 files, to be sure that the number account of the Data.xls file will be compliant with the correct number account in DataPCN.xls
For example this is the kind of data i have to process: (data.xls)

Now i want to check all the number of the "ACCOUNT" column with the "ACCOUNT_PCN" column of the file dataPCN.xls as you can see below

Now i don't know how to make a test matching for exemple ACCOUNT: 1010000 with ACCOUNT_PCN: 101
We have a column with the number of digit if we need to use it, but the Libelle column should not be taken for the matching..
If the account number match with the AccountPCN (compliant) 1010000 ==> 101 it's OK or 6133300 ==> 6133 etc
If there is no matching number i want to see data of the DATA.xls file that are not compliant with DATA_PCN.xls.. it's possible ?
I hope you understand my request
Thank a lot for your help & sorry if i made mistakes with my english