用记事本+

这将修复Excel保存的损坏的CSV文件，并以适当的编码重新保存它。

从Excel导出CSV 加载到notepad++ 解决编码 保存

Excel保存在CP-1252 / Windows-1252中。在notepad++中打开CSV文件。选择

Encoding > Character Sets > Western European > Windows-1252

Then

Encoding > Convert to UTF-8
File > Save

首先告诉notepad++编码，然后转换。有些其他答案在转换时没有先设置正确的编码，这会使文件更加混乱。他们会把原本应该是“達”的东西变成“達”。如果您的字符不符合CP-1252，那么它在保存为CSV时就已经丢失了。用另一个答案。

简单的方法: 不需要Open office和谷歌文档

Save your file as "Unicode text file"; now you have an unicode text file open it with "notepad" and "Save as" it with selecting "utf-8" or other code page that you want rename file extension from "txt" to "csv". This will result in a tab-delimited UTF-8 csv file. If you want a comma-delimited file, open the csv file you just renamed and replace all tabs with commas. To do this in Notepad on Win 10, simply select one tab field then click Ctrl+H. In the window that opens, type a comma , in the "Replace with" field then click "Replace All". Save your file. The result will be a comma-delimited UTF-8 csv file.

不管怎样，不要用ms office打开它!! 现在您有了一个以制表符分隔的CSV文件。 或者，如果应用步骤5，则使用逗号分隔。

使用Powershell怎么样?

Get-Content 'C:\my.csv' | Out-File 'C:\my_utf8.csv' -Encoding UTF8

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。

看起来很有趣，我发现将180MB的电子表格保存到UTF8 CSV文件中最简单的方法是将单元格选择到Excel中，复制它们，并将剪贴板的内容粘贴到SublimeText中。

另一个我觉得有用的例子是: “数字”允许在保存为CSV时进行编码设置。