search for: ensgzzzz

Hi ! >From an Ensembl annotation like ENSGxxxx /// ENSGyyyyy /// ENSGzzzz, I am trying to keep only the first part: ENSGxxxx. I wasn't able to find any helpful information about how to do it. Could you help me with that please ? Is the use of the equivalent to the Excel * (any text) a good way of doing it and how ? Your help will be very much appreciated. Amelie...