Is it possible to import data from a spreadsheet to update existing objects in M-Files?

I am trying to establish if it is possible to use data from an excel spreadsheet, that contains the properties from an M-Files object and update that object in the Client?  I don't need all the properties updating just specific ones.

We have certain processes where a mass update is required on specific properties of an object/class that exists and I thought/hoped the M-Files Importer would achieve it but it doesn't look that way.

Any ideas much appreciated.  Thanks in anticipation.