trouble with utf-8 with julia and jupyterlab

I'm reading the csv file at https://github.com/VinitaSilaparasetty/julia-beginners/blob/master/data/nba/nba19-20.csv

I get a DataFrame and I save it as XLSX. When I try to read it in jupyterlab I get the error the file is not UTF-8 encoded and therefore the file is not read.

This is my code:

using HTTP, XLSX, CSV, DataFrames
df = CSV.read(HTTP.get("https://raw.githubusercontent.com/VinitaSilaparasetty/julia-beginners/master/data/nba/nba19-20.csv").body)
# first(df,5) # first shows the top five rows ok
XLSX.writetable("data/nba/nba19-20.XLSX", collect(eachcol(df)), names(df), overwrite = true)

The file is saved in my data folder. When I try to open it with jupyterlab, I get a pop up with the file is not UTF-8 encoded and the file is not opened. When I try to open the file in Ubuntu (with LibreOffice) I do not see anything suspicious.

As I'm new to Julia I'm struggling to understand where the problem lies or how to fix it.

I tried to see if I could encode the dataframe in UTF-8 (after saving the file to disk) with

data = DataFrame(CSV.File(open(read,"data/nba/nba19-20.csv", enc"utf-8")))

But I did not see any change. Any suggestion is welcome.

Do you have the jupyterlab-spreadsheet plugin installed? JupyterLab by default doesn't support opening xlsx files (it isn't mentioned in the file formats list here for example).

See also this similar question involving Python pandas (which says pretty much the same thing).