In Auto FTP Manager the default rule is to overwrite files if they are present on the destination. You can maintain a history of file changes by appending the date and time to newer files. This can be done using the Conflict resolution feature.

To configure these settings, right click on the automated transfer profile name and select the Edit Profile option. Navigate to the Action rules page. Look for the Conflict resolution section, and choose the Append Date-Time option from the drop down list.



Now, whenever you download files from your FTP server, the date and time will be added to the filename. This way the original file will not get overwritten and you can maintain a history of downloaded files.