Hello,
It looks like you are using an old version of Adaxes, since the latest one shows a warning if a CSV file contains a column for a property, which is not defined in the AD schema. In your case the incorrect property is office:
The LDAP name of the Office property is physicalDeliveryOfficeName. So, the header of your CSV file should look as follows:
cn,givenName,sn,displayName,description,physicalDeliveryOfficeName,sAMAccountname,userPrincipalName
For more details, see View Property Name Mapping in http://www.adaxes.com/tutorials_ActiveD ... SVFile.htm