最简单的解决方案 我今天才想出来的。

用Word打开 用连字符替换所有连字符 保存并关闭 在Excel中打开

一旦你完成编辑，你可以再次在Word中打开它，再次用连字符替换破折号。

I know this is an old question, but the problem is not going away soon. CSV files are easy to generate from most programming languages, rather small, human-readable in a crunch with a plain text editor, and ubiquitous. The problem is not only with dates in text fields, but anything numeric also gets converted from text to numbers. A couple of examples where this is problematic: ZIP/postal codes telephone numbers government ID numbers which sometimes can start with one or more zeroes (0), which get thrown away when converted to numeric. Or the value contains characters that can be confused with mathematical operators (as in dates: /, -). Two cases that I can think of that the "prepending =" solution, as mentioned previously, might not be ideal is where the file might be imported into a program other than MS Excel (MS Word's Mail Merge function comes to mind), where human-readability might be important. My hack to work around this If one pre/appends a non-numeric and/or non-date character in the value, the value will be recognized as text and not converted. A non-printing character would be good as it will not alter the displayed value. However, the plain old space character (\s, ASCII 32) doesn't work for this as it gets chopped off by Excel and then the value still gets converted. But there are various other printing and non-printing space characters that will work well. The easiest however is to append (add after) the simple tab character (\t, ASCII 9). Benefits of this approach: Available from keyboard or with an easy-to-remember ASCII code (9), It doesn't bother the importation, Normally does not bother Mail Merge results (depending on the template layout - but normally it just adds a wide space at the end of a line). (If this is however a problem, look at other characters e.g. the zero-width space (ZWSP, Unicode U+200B) is not a big hindrance when viewing the CSV in Notepad (etc), and could be removed by find/replace in Excel (or Notepad etc). You don't need to import the CSV, but can simply double-click to open the CSV in Excel. If there's a reason you don't want to use the tab, look in an Unicode table for something else suitable. Another option might be to generate XML files, for which a certain format also is accepted for import by newer MS Excel versions, and which allows a lot more options similar to .XLS format, but I don't have experience with this. So there are various options. Depending on your requirements/application, one might be better than another. Addition It needs to be said that newer versions (2013+) of MS Excel don't open the CSV in spreadsheet format any more - one more speedbump in one's workflow making Excel less useful... At least, instructions exist for getting around it. See e.g. this Stackoverflow: How to correctly display .csv files within Excel 2013? .

警告:Excel '07(至少)有一个(另一个)错误:如果字段的内容中有逗号，它不会正确解析="field, contents"，而是将逗号后的所有内容放入下面的字段中，而不管引号是什么。

我发现唯一有效的解决方法是当字段内容包含逗号时消除=。

这可能意味着有些字段不可能在Excel中完全“正确”地表示，但到目前为止，我相信没有人会感到太惊讶。

在双引号中添加空格前缀解决了这个问题!!

我在csv文件的一个列中有“7/8”这样的数据，MS-Excel将其转换为“07-Aug”。但是使用“LibreOffice Calc”就没有问题了。

为了解决这个问题，我只是给空格字符加上前缀(在7之前添加空格)，比如“7/8”，这对我来说很有效。这是为Excel-2007测试的。

在Excel 2010中打开一个新工作表。 在“数据”ribbon上单击“从文本中获取外部数据”。 选择您的CSV文件，然后单击“打开”。 单击“下一步”。 取消“Tab”，在“逗号”旁边打勾，然后点击“下一步”。 单击第一列上的任意位置。 按住shift键拖动滑块，直到可以单击最后一列，然后松开shift键。 点击“文本”单选按钮，然后点击“完成”

所有列都将作为文本导入，就像它们在CSV文件中一样。

而创建字符串要写入我的CSV文件在c#中，我必须这样格式化它:

"=\"" + myVariable + "\""