How to convert the DEM in the extension (*.dem) into (*.xyz) file?

Q&A
13

here didn’t work with the dem file from https://ddfe.curtin.edu.au/models/ERTM2160/data/dem.zip

julia> imshow("S60W075.dem", shade=true)
ERROR 4: `S60W075.dem' not recognized as a supported file format.
grdinfo (gmtapi_import_grid): Not a supported grid format [S60W075.dem]
[Session GMT (0)]: Error returned from GMT API: GMT_GRID_READ_ERROR (18)
[Session GMT (0)]: Error returned from GMT API: GMT_GRID_READ_ERROR (18)
[Session GMT (0)]: Error returned from GMT API: GMT_OBJECT_NOT_FOUND (60)
ERROR: BoundsError: attempt to access 0×0 Matrix{Float64} at index [2]
Stacktrace:
 [1] getindex(A::Matrix{Float64}, i1::Int64)
   @ Base ./array.jl:861
 [2] snif_GI_set_CTRLlimits(G_I::String)
   @ GMT ~/.julia/packages/GMT/kbsTR/src/imshow.jl:133
 [3] imshow(arg1::String, x::Vector{Float64}, y::Vector{Float64}; kw::Base.Pairs{Symbol, Bool, Tuple{Symbol}, NamedTuple{(:shade,), Tuple{Bool}}})
   @ GMT ~/.julia/packages/GMT/kbsTR/src/imshow.jl:45
 [4] top-level scope
   @ REPL[3]:1