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我也遇到了同样的问题，于是谷歌了这篇文章。以上这些方法对我都没用。最后，我将我的Unicode .xls转换为.xml(选择另存为…XML电子表格2003)，它产生了正确的字符。然后我编写代码来解析xml并提取内容供我使用。

I needed to automate this process on my Mac. I originally tried using catdoc/xls2csv as suggested by mpowered, but xls2csv had trouble detecting the original encoding of the document and not all documents were the same. What I ended up doing was setting the default webpage output encoding to be UTF-8 and then providing the files to Apple's Automator, applying the Convert Format of Excel Files action to convert to Web Page (HTML). Then using PHP, DOMDocument and XPath, I queried the documents and formatted them to CSV.

这是PHP脚本(process.php):

<?php
$pi = pathinfo($argv[1]);
$file = $pi['dirname'] . '/' . $pi['filename'] . '.csv';
$fp = fopen($file,'w+');
$doc = new DOMDocument;
$doc->loadHTMLFile($argv[1]);
$xpath = new DOMXPath($doc);
$table = [];
foreach($xpath->query('//tr') as $row){
    $_r = [];
    foreach($xpath->query('td',$row) as $col){
        $_r[] = trim($col->textContent);
    }
    fputcsv($fp,$_r);
}
fclose($fp);
?>

这是我用来将HTML文档转换为csv的shell命令:

find . -name '*.htm' | xargs -I{} php ./process.php {}

这是一种非常非常迂回的方法，但这是我发现的最可靠的方法。

我写了一个小的Python脚本，可以导出UTF-8格式的工作表。

您只需要提供Excel文件作为第一个参数，然后是要导出的表。如果不提供工作表，脚本将导出Excel文件中存在的所有工作表。

#!/usr/bin/env python

# export data sheets from xlsx to csv

from openpyxl import load_workbook
import csv
from os import sys

reload(sys)
sys.setdefaultencoding('utf-8')

def get_all_sheets(excel_file):
    sheets = []
    workbook = load_workbook(excel_file,use_iterators=True,data_only=True)
    all_worksheets = workbook.get_sheet_names()
    for worksheet_name in all_worksheets:
        sheets.append(worksheet_name)
    return sheets

def csv_from_excel(excel_file, sheets):
    workbook = load_workbook(excel_file,use_iterators=True,data_only=True)
    for worksheet_name in sheets:
        print("Export " + worksheet_name + " ...")

        try:
            worksheet = workbook.get_sheet_by_name(worksheet_name)
        except KeyError:
            print("Could not find " + worksheet_name)
            sys.exit(1)

        your_csv_file = open(''.join([worksheet_name,'.csv']), 'wb')
        wr = csv.writer(your_csv_file, quoting=csv.QUOTE_ALL)
        for row in worksheet.iter_rows():
            lrow = []
            for cell in row:
                lrow.append(cell.value)
            wr.writerow(lrow)
        print(" ... done")
    your_csv_file.close()

if not 2 <= len(sys.argv) <= 3:
    print("Call with " + sys.argv[0] + " <xlxs file> [comma separated list of sheets to export]")
    sys.exit(1)
else:
    sheets = []
    if len(sys.argv) == 3:
        sheets = list(sys.argv[2].split(','))
    else:
        sheets = get_all_sheets(sys.argv[1])
    assert(sheets != None and len(sheets) > 0)
    csv_from_excel(sys.argv[1], sheets)

在Excel 2016及更高版本(包括Office 365)中，有一个专门用于UTF-8格式的CSV选项。

在Office 365中，选择另存为;以前人们可能会选择CSV(逗号分隔)，现在你可以保存为CSV UTF-8(逗号分隔)(*.csv)

您可以在Unix下使用iconv命令(也可以在Windows上作为libiconv)。

在Excel下保存为CSV后，在命令行输入:

iconv -f cp1250 -t utf-8 file-encoded-cp1250.csv > file-encoded-utf8.csv

(记住用你的编码替换cp1250)。

工作快速和伟大的大文件，如邮政编码数据库，不能导入到GoogleDocs(400.000单元格限制)。