It seems Excel 2013 doesn\'t read CSV files correctly (Excel 2010 does). Every time I open .csv files, all my data are displayed in the first column.
I know I can go
Another possible problem is that the csv file contains a byte order mark "FEFF". The byte order mark is intended to detect whether the file has been moved from a system using big endian or little endian byte ordering to a system of the opposite endianness. https://en.wikipedia.org/wiki/Byte_order_mark
Removing the "FEFF" byte order mark using a hex editor should allow Excel to read the file.
Open the CSV file with a decent text editor like Notepad++ and add the following text in the first line:
sep=,
Now open it with excel again.
This will set the separator as a comma, or you can change it to whatever you need.
Taken from https://superuser.com/questions/238944/how-to-force-excel-to-open-csv-files-with-data-arranged-in-columns
The behavior of Excel when opening CSV files heavily depends on your local settings and the selected list separator under Region and language » Formats » Advanced. By default Excel will assume every CSV was saved with that separator. Which is true as long as the CSV doesn't come from another country!
If your customers are in other countries, they may see other results then you think.
For example, here you see that a German Excel will use semicolon instead of comma like in the U.S.
The problem is from regional Options . The decimal separator in win 7 for european countries is coma . You have to open Control Panel -> Regional and Language Options -> Aditional Settings -> Decimal Separator : click to enter a dot (.) and to List Separator enter a coma (,) . This is !
I know that an answer has already been accepted, but one item to check is the encoding of the CSV file. I have a Powershell script that generates CSV files. By default, it was encoding them as UCS-2 Little Endian (per Notepad++). It would open the file in a single column in Excel and I'd have to do the Text to Columns conversion to split the columns. Changing the script to encode the same output as "ASCII" (UTF-8 w/o BOM per Notepad++) allowed me to open the CSV directly with the columns split out. You can change the encoding of the CSV in Notepad++ too.
For Excel 2013:
http://blogmines.com/blog/how-to-import-text-file-in-excel-2013/