Which encoding opens CSV files correctly with Excel on both Mac and Windows

Question

We have a web app that exports CSV files containing foreign characters with UTF-8  no BOM  Both Windows and Mac users get garbage characters in Excel  I tried converting to UTF-8 with BOM  Excel Win is fine with it  Excel Mac shows gibberish  I m using Excel 2003 Win  Excel 2011 Mac  Here s all the encodings I tried   Encoding  BOM      Win                            Mac --------  ---      ----------------------------   ------------ utf-8     --       scrambled                      scrambled utf-8     BOM      WORKS                          scrambled utf-16    --       file not recognized            file not recognized utf-16    BOM      file not recognized            Chinese gibberish utf-16LE  --       file not recognized            file not recognized utf-16LE  BOM      characters OK                  same as Win                    row data all in first field   The best one is UTF-16LE with BOM  but the CSV is not recognized as such  The field separator is comma  but semicolon doesn t change things   Is there any encoding that works in both worlds

User · Answer

The following worked for me on Excel for Mac 2011 and Windows Excel 2002:

Using iconv on Mac, convert the file to UTF-16 Little-Endian + name it *.txt (the .txt extension forces Excel to run the Text Import Wizard):

iconv -f UTF-8 -t UTF-16LE filename.csv >filename_UTF-16LE.csv.txt
Open the file in Excel and in the Text Import Wizard choose:
- Step 1: File origin: ignore it, it doesn't matter what you choose
- Step 2: select proper values for Delimiters and Text qualifier
- Step 3: if necessary, select column formats

PS The UTF-16LE created by iconv has BOM bytes FF FE in the beginning.

PPS My original csv file was created on a Windows 7 computer, in UTF-8 format (with the BOM bytes EF BB BF in the beginning) and used CRLF line breaks. Comma was used as field delimiter and single quote as text qualifier. It contained ASCII letters plus different latin letters with tildes, umlaut etc, plus some cyrillic. All displayed properly in both Excel for Win and Mac.

PPPS Exact software versions:
* Mac OS X 10.6.8
* Excel for Mac 2011 v.14.1.3
* Windows Server 2003 SP2
* Windows Excel 2002 v.10.2701.2625

User · Answer

This works for me   Open the file in BBEdit or TextWrangler    Set the file as Unicode  UTF-16 Little-Endian   Line Endings can be Unix or Windows   Save  In Excel  Data   Get External Data   Import Text File      Now the key point  choose MacIntosh as File Origin  it should be the first choice     This is using Excel 2011  version 14 4 2    There s a little dropdown at the bottom of the window

User · Answer

The lowdown is  There is no solution  Excel 2011 Mac cannot correctly interpret a CSV file containing umlauts and diacritical marks no matter what encoding or hoop jumping you do  I d be glad to hear someone tell me different

User · Answer

In my case adding Preamble to file solved my problem   var data   Encoding UTF8 GetBytes csv   var result   Encoding UTF8 GetPreamble   Concat data  ToArray    return File new MemoryStream result    application octet-stream    data csv

User · Answer

Solve this using java   UTF-16LE with BOM     String csvReportStr   getCsvReport    byte   data   Charset forName  UTF-16LE   encode csvReportStr       put 0   byte  0xFF       put 1   byte  0xFE       array      Note that CSV file should use TAB as separator  You can read the CSV file both on windows and MAC OS X   Refer to  How do I encode decode UTF-16LE byte arrays with a BOM

User · Answer

On my Mac OS  Text Wrangler identified a CSV file created with Excel as having  Western  encoding   After some googling I have made this small script  I am not sure about Windows availability  maybe with Cygwin       cat  usr local bin utf8 sh     bin bash  INPUTFILE   1   iconv -f macroman -c -t UTF-8  INPUTFILE  tr   r    n   gt  tmp file    csv  mv  INPUTFILE ms trash mv  tmp file    csv  INPUTFILE

User · Answer

It seems to my case that Excel 2011 for Mac OS is not using Encoding GetEncoding  10000   as i thought and wasted 2 days with but the same iso as on Microsoft OS  The best proof for this is to make a file in Excel 2011 for MAC with special chars  save it as CSV and then open it in MAC text editor and the chars are scrambled   For me this approach worked - meaning that csv export on Excel 2011 on MAC OS has special western europeean chars inside   Encoding isoMacOS   Encoding GetEncoding  iso-8859-1    Encoding defaultEncoding   Encoding Default       Convert the string into a byte array  byte   defaultEncodingBytes   defaultEncoding GetBytes exportText       Perform the conversion from one encoding to the other  byte   ansiBytes   Encoding Convert defaultEncoding  isoMacOS  defaultEncodingBytes    decodedString   isoMacOS GetString ansiBytes

User · Answer

instead of csv  trying outputting html with an XLS extension and  application excel  mime-type  I know this will work in Windows  but can t speak for MacOS

User · Answer

UTF-8 with no BOM currently works for me in Excel Mac 2011 14 3 2   UTF-8   BOM kind of works  but BOM rendered as gibberish   UTF-16 works if you Import the file and complete the wizard  but not if you just double-click it

User · Answer

You only have tried comma-separated and semicolon-separated CSV  If you had tried tab-separated CSV  also called TSV  you would have found the answer   UTF-16LE with BOM  byte order mark   tab-separated    But  In a comment you mention that TSV is not an option for you  I haven t been able to find this requirement in your question though   That s a pity  It often means that you allow manual editing of TSV files  which probably is not a good idea  Visual checking of TSV files is not a problem  Furthermore editors can be set to display a special character to mark tabs   And yes  I tried this out on Windows and Mac

User · Answer

In my case this worked  Mac  Excel 2011  both Cyrillic and Latin characters with Czech diacritics     Charset UTF-16LE  simply UTF-16 was not enough  BOM   xFF xFE   t  tab  as separator Don t forget to encode also separator and CRLFs  -  Use iconv instead of mb convert encoding

User · Answer

The best workaround for reading CSV files with UTF-8 on Mac is to convert them into XLSX format  I have found a script made by Konrad Foerstner  which I have improved little bit by adding support for different delimiter characters   Download the script from Github https   github com brablc clit blob master csv2xlsx py  In order to run it you will need to install a python module openpyxl for Excel file manipulation  sudo easy install openpyxl

User · Answer

For UTF-16LE with BOM if you use tab characters as your delimiters instead of commas Excel will recognise the fields  The reason it works is that Excel actually ends up using its Unicode   txt parser   Caveat  If the file is edited in Excel and saved  it will be saved as tab-delimited ASCII  The problem now is that when you re-open the file Excel assumes it s real CSV  with commas   sees that it s not Unicode  so parses it as comma-delimited - and hence will make a hash of it   Update  The above caveat doesn t appear to be happening for me today in Excel 2010  Windows  at least  although there does appear to be a difference in saving behaviour if    you edit and quit Excel  tries to save as  Unicode   txt     compared to    editing and closing just the file  works as expected

User · Answer

Here s the clincher on importing utf8-encoded CSV into Excel 2011 for Mac  Microsoft says   Excel for Mac does not currently support UTF-8   Excel for Mac 2011 and UTF-8  Yay  way to go MS

User · Answer

Excel Encodings  I found the WINDOWS-1252 encoding to be the least frustrating when dealing with Excel  Since its basically Microsofts own proprietary character set  one can assume it will work on both the Mac and the Windows version of MS-Excel  Both versions at least include a corresponding  File origin  or  File encoding  selector which correctly reads the data   Depending on your system and the tools you use  this encoding could also be named CP1252  ANSI  Windows  ANSI   MS-ANSI or just Windows  among other variations   This encoding is a superset of ISO-8859-1  aka LATIN1 and others   so you can fallback to ISO-8859-1 if you cannot use WINDOWS-1252 for some reason  Be advised that ISO-8859-1 is missing some characters from WINDOWS-1252 as shown here     Char   ANSI   Unicode   ANSI Hex   Unicode Hex   HTML entity   Unicode Name                                 Unicode Range                         128    8364      0x80       U 20AC         amp euro         euro sign                                    Currency Symbols                      130    8218      0x82       U 201A         amp sbquo        single low-9 quotation mark                  General Punctuation                  131    402       0x83       U 0192         amp fnof         Latin small letter f with hook               Latin Extended-B                      132    8222      0x84       U 201E         amp bdquo        double low-9 quotation mark                  General Punctuation                   133    8230      0x85       U 2026         amp hellip       horizontal ellipsis                          General Punctuation                   134    8224      0x86       U 2020         amp dagger       dagger                                       General Punctuation                   135    8225      0x87       U 2021         amp Dagger       double dagger                                General Punctuation                  136    710       0x88       U 02C6         amp circ         modifier letter circumflex accent            Spacing Modifier Letters              137    8240      0x89       U 2030         amp permil       per mille sign                               General Punctuation                  138    352       0x8A       U 0160         amp Scaron       Latin capital letter S with caron            Latin Extended-A                      139    8249      0x8B       U 2039         amp lsaquo       single left-pointing angle quotation mark    General Punctuation                  140    338       0x8C       U 0152         amp OElig        Latin capital ligature OE                    Latin Extended-A                     142    381       0x8E       U 017D                      Latin capital letter Z with caron            Latin Extended-A                      145    8216      0x91       U 2018         amp lsquo        left single quotation mark                   General Punctuation                   146    8217      0x92       U 2019         amp rsquo        right single quotation mark                  General Punctuation                   147    8220      0x93       U 201C         amp ldquo        left double quotation mark                   General Punctuation                   148    8221      0x94       U 201D         amp rdquo        right double quotation mark                  General Punctuation                   149    8226      0x95       U 2022         amp bull         bullet                                       General Punctuation                   150    8211      0x96       U 2013         amp ndash        en dash                                      General Punctuation                   151    8212      0x97       U 2014         amp mdash        em dash                                      General Punctuation                  152    732       0x98       U 02DC         amp tilde        small tilde                                  Spacing Modifier Letters              153    8482      0x99       U 2122         amp trade        trade mark sign                              Letterlike Symbols                   154    353       0x9A       U 0161         amp scaron       Latin small letter s with caron              Latin Extended-A                      155    8250      0x9B       U 203A         amp rsaquo       single right-pointing angle quotation mark   General Punctuation                  156    339       0x9C       U 0153         amp oelig        Latin small ligature oe                      Latin Extended-A                     158    382       0x9E       U 017E                      Latin small letter z with caron              Latin Extended-A                     159    376       0x9F       U 0178         amp Yuml         Latin capital letter Y with diaeresis        Latin Extended-A             Note that the euro sign is missing  This table can be found at Alan Wood   Conversion  Conversion is done differently in every tool and language  However  suppose you have a file query result csv which you know is UTF-8 encoded  Convert it to WINDOWS-1252 using iconv   iconv -f UTF-8 -t WINDOWS-1252 query result csv  gt  query result-win csv

[windows] Which encoding opens CSV files correctly with Excel on both Mac and Windows?

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