# How to save Set to file?

**URL:** https://discourse.julialang.org/t/how-to-save-set-to-file/35506
**Category:** General Usage
**Tags:** set
**Created:** [March 4, 2020, 7:54am UTC](https://discourse.julialang.org/t/how-to-save-set-to-file/35506 "2020-03-04T07:54:15Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![programista](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/programista/32/5372_2.png) [@programista](https://discourse.julialang.org/u/programista)
#### Post date: [March 4, 2020, 7:54am UTC](https://discourse.julialang.org/t/how-to-save-set-to-file/35506/1 "2020-03-04T07:54:15Z")

</div>

How to save Set ?  
julia\> Sunikalne  
Set([“WYMYŚLA”, “PRZEPRZĘGAJĄCE”])  
julia\> typeof(Sunikalne)  
Set{String}  
julia\> eltype(Sunikalne)  
String  
julia\> write(“Sunikalne.txt”,Sunikalne)  
ERROR: MethodError: no method matching write(::IOS

```julia
to bin file not works , any other idea?
Paul
```

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<div class="post-metadata">

### Author: ![nilshg](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/nilshg/32/2283_2.png) [@nilshg](https://discourse.julialang.org/u/nilshg)
#### Post date: [March 4, 2020, 8:12am UTC](https://discourse.julialang.org/t/how-to-save-set-to-file/35506/2 "2020-03-04T08:12:58Z")

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```julia
using DelimitedFiles

writedlm("Sunikalne.txt", Sunikalne)

```

---

<div class="post-metadata">

### Author: ![programista](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/programista/32/5372_2.png) [@programista](https://discourse.julialang.org/u/programista)
#### Post date: [March 4, 2020, 8:35am UTC](https://discourse.julialang.org/t/how-to-save-set-to-file/35506/3 "2020-03-04T08:35:05Z")

</div>

> [@nilshg](#):
>
> writedlm("Su

Thnaks

```julia
julia> readdlm("Sunikalne.txt")
100×1 Array{Any,2}:

```

but readdlm() always is reading 1 column as array nx2 😕

to read must use vec. Is another way to keep nx1 dimenssion ?

```julia
vec(readdlm("Sunikalne.txt"))

```

Paul