Can't you run File > Export as a Version? It has 10.4 available there
Thank you for your prompt response - this is exactly what I was after!
I have one more query on this. Some of my values are very small, for example 1.5 and 1.7. Currently they look like thin dark lines at the top of my stacked chart. I have adjusted the scale but this doesn't change anything. Do you have any suggestions that I could try so that they look slightly bigger?
If the data is small, then the bar will be small
In this situation I usually add a filter so users can remove the large amounts and see the smaller ones.
Please mark an answer as correct to help others
Thank you - all done!