I have multiple data sets in several excel (.xlsx) files that I want to visualize as a single 3D scatter plot. I can import each data set individually and plot them using the ListPointPlot3D command:

data3 = Import["/Users/hewittwm/Documents/Mathematica/data3.xlsx"]
ListPointPlot3D[data3, BoxRatios -> 1, PlotRange -> {{0, 3000}, {0, 1}, {0, 1}}, AxesLabel -> {"Volume", "Buriedness", "Hydrophobicity"}]

data4 = Import["/Users/hewittwm/Documents/Mathematica/data4.xlsx"]
ListPointPlot3D[data4, BoxRatios -> 1, PlotRange -> {{0, 3000}, {0, 1}, {0, 1}}, AxesLabel -> {"Volume", "Buriedness", "Hydrophobicity"}]

But when I try to plot both together:

ListPointPlot3D[{data3,data4}]

I get an error saying "must be a valid array or a list of valid arrays"

How do I resolve this? Is there a better way to go about plotting my data points in 3D? Any advice would be greatly appreciated as I am fairly new to Mathematica and the Wolfram Language.