Is there a way to include commas in CSV columns without breaking the formatting?

Enclose the field in quotes, e.g.

field1_value,field2_value,"field 3,value",field4, etc...

See wikipedia.

Updated:

To encode a quote, use ", one double quote symbol in a field will be encoded as "", and the whole field will become """". So if you see the following in e.g. Excel:

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| regular_value |,,,"|  ,"", |"""   |"|
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the CSV file will contain:

regular_value,",,,""",","""",","""""""",""""

A comma is simply encapsulated using quotes, so , becomes ",".

A comma and quote needs to be encapsulated and quoted, so "," becomes """,""".

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I found that some applications like Numbers in Mac ignore the double quote if there is space before it.

a, "b,c" doesn't work while a,"b,c" works.

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The problem with the CSV format, is there's not one spec, there are several accepted methods, with no way of distinguishing which should be used (for generate/interpret). I discussed all the methods to escape characters (newlines in that case, but same basic premise) in another post. Basically it comes down to using a CSV generation/escaping process for the intended users, and hoping the rest don't mind.

Reference spec document.

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If you want to make that you said, you can use quotes. Something like this

$name = "Joe Blow, CFA.";
$arr[] = "\"".$name."\"";

so now, you can use comma in your name variable.

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You need to quote that values.
Here is a more detailed spec.

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In addition to the points in other answers: one thing to note if you are using quotes in Excel is the placement of your spaces. If you have a line of code like this:

print '%s, "%s", "%s", "%s"' % (value_1, value_2, value_3, value_4)

Excel will treat the initial quote as a literal quote instead of using it to escape commas. Your code will need to change to

print '%s,"%s","%s","%s"' % (value_1, value_2, value_3, value_4)

It was this subtlety that brought me here.

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You can use Template literals (Template strings)

e.g -

`"${item}"`

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Depending on your language, there may be a to_json method available. That will escape many things that break CSVs.

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CSV files can actually be formatted using different delimiters, comma is just the default.

You can use the sep flag to specify the delimiter you want for your CSV file.

Just add the line sep=; as the very first line in your CSV file, that is if you want your delimiter to be semi-colon. You can change it to any other character.

https://i.stack.imgur.com/0DV1G.jpg

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I faced the same problem and quoting the , did not help. Eventually, I replaced the , with +, finished the processing, saved the output into an outfile and replaced the + with ,. This may seem ugly but it worked for me.

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May not be what is needed here but it's a very old question and the answer may help others. A tip I find useful with importing into Excel with a different separator is to open the file in a text editor and add a first line like:

sep=|

where | is the separator you wish Excel to use. Alternatively you can change the default separator in Windows but a bit long-winded:

Control Panel>Clock & region>Region>Formats>Additional>Numbers>List separator [change from comma to your preferred alternative]. That means Excel will also default to exporting CSVs using the chosen separator.

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This isn't a perfect solution, but you can just replace all uses of commas with ‚ or a lower quote. It looks very very similar to a comma and will visually serve the same purpose. No quotes are required

in JS this would be

stringVal.replaceAll(',', '‚')

You will need to be super careful of cases where you need to directly compare that data though

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You could encode your values, for example in PHP base64_encode($str) / base64_decode($str)

IMO this is simpler than doubling up quotes, etc.

https://www.php.net/manual/en/function.base64-encode.php

The encoded values will never contain a comma so every comma in your CSV will be a separator.

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You can use the Text_Qualifier field in your Flat file connection manager to as ". This should wrap your data in quotes and only separate by commas which are outside the quotes.

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First, if item value has double quote character ("), replace with 2 double quote character ("")

item = item.ToString().Replace("""", """""")

Finally, wrap item value:

ON LEFT: With double quote character (")

ON RIGHT: With double quote character (") and comma character (,)

csv += """" & item.ToString() & ""","

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Double quotes not worked for me, it worked for me \". If you want to place a double quotes as example you can set \"\".

You can build formulas, as example:

fprintf(strout, "\"=if(C3=1,\"\"\"\",B3)\"\n");

will write in csv:

=IF(C3=1,"",B3)

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