Depending on what you want to write, maybe even just
julia> x = rand(2,2)
2×2 Array{Float64,2}:
0.126405 0.14943
0.260247 0.415338
julia> using DelimitedFiles
julia> writedlm("x.txt", x)
Depending on what you want to write, maybe even just
julia> x = rand(2,2)
2×2 Array{Float64,2}:
0.126405 0.14943
0.260247 0.415338
julia> using DelimitedFiles
julia> writedlm("x.txt", x)