# Csv file not a valid file
**URL:** https://discourse.julialang.org/t/csv-file-not-a-valid-file/36153
**Category:** New to Julia
**Tags:** csv
**Created:** [March 18, 2020, 5:39pm UTC](https://discourse.julialang.org/t/csv-file-not-a-valid-file/36153 "2020-03-18T17:39:11Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@mayar](https://discourse.julialang.org/u/mayar)
#### Post date: [March 18, 2020, 5:39pm UTC](https://discourse.julialang.org/t/csv-file-not-a-valid-file/36153/1 "2020-03-18T17:39:11Z")
Excel files are basically CSV files, aren’t they ?
What could be the reason my excel file “branch” be not considered a valid CSV file… This is the error msg I get. 
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### Author:  [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)
#### Post date: [March 18, 2020, 5:55pm UTC](https://discourse.julialang.org/t/csv-file-not-a-valid-file/36153/2 "2020-03-18T17:55:56Z")
> [@mayar](#):
>
> Excel files are basically CSV files, aren’t they ?
If you open it in a text editor, does it look like a CSV file?
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### Author:  [@jeffreyesun](https://discourse.julialang.org/u/jeffreyesun)
#### Post date: [March 18, 2020, 6:40pm UTC](https://discourse.julialang.org/t/csv-file-not-a-valid-file/36153/3 "2020-03-18T18:40:03Z")
Excel files are indeed not much like CSV files at all. In fact, an Excel file is internally a ZIP file containing XML files. However, packages do exist for reading Excel files into Julia. Try [XLSX.jl](https://felipenoris.github.io/XLSX.jl/dev/).
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### Author:  [@mayar](https://discourse.julialang.org/u/mayar)
#### Post date: [March 18, 2020, 6:56pm UTC](https://discourse.julialang.org/t/csv-file-not-a-valid-file/36153/4 "2020-03-18T18:56:51Z")
where do i write xlsx.jl pls ?
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### Author:  [@jeffreyesun](https://discourse.julialang.org/u/jeffreyesun)
#### Post date: [March 18, 2020, 6:57pm UTC](https://discourse.julialang.org/t/csv-file-not-a-valid-file/36153/5 "2020-03-18T18:57:29Z")
You can install it by typing `]add XLSX` in your REPL.
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### Author:  [@mayar](https://discourse.julialang.org/u/mayar)
#### Post date: [March 18, 2020, 7:07pm UTC](https://discourse.julialang.org/t/csv-file-not-a-valid-file/36153/6 "2020-03-18T19:07:19Z")
i TYPED this in my REPL
Pkg.add(“xlsx”)
but I got the same error
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### Author:  [@jeffreyesun](https://discourse.julialang.org/u/jeffreyesun)
#### Post date: [March 18, 2020, 7:16pm UTC](https://discourse.julialang.org/t/csv-file-not-a-valid-file/36153/7 "2020-03-18T19:16:37Z")
Try typing `]add XLSX`, and remember to capitalize.
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### Author:  [@mayar](https://discourse.julialang.org/u/mayar)
#### Post date: [March 18, 2020, 7:21pm UTC](https://discourse.julialang.org/t/csv-file-not-a-valid-file/36153/8 "2020-03-18T19:21:14Z")
> [@jeffreyesun](#):
>
> ]add XLSX
yes it is added
I git a msg of no change but after I run the main code, I get the same error . what could be the reason 
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### Author:  [@jeffreyesun](https://discourse.julialang.org/u/jeffreyesun)
#### Post date: [March 18, 2020, 7:22pm UTC](https://discourse.julialang.org/t/csv-file-not-a-valid-file/36153/9 "2020-03-18T19:22:24Z")
What code are you trying to run? Are you using the XLSX package as in [this tutorial](https://felipenoris.github.io/XLSX.jl/dev/tutorial/)?