None of the solutions offered here is a good solution. It may work for individual cases, but only if you're in control of the final display. Take my example: my work produces list of products they sell to retail. This is in CSV format and contain part-codes, some of them start with zero's, set by manufacturers (not under our control). Take away the leading zeroes and you may actually match another product. Retail customers want the list in CSV format because of back-end processing programs, that are also out of our control and different per customer, so we cannot change the format of the CSV files. No prefixed'=', nor added tabs. The data in the raw CSV files is correct; it's when customers open those files in Excel the problems start. And many customers are not really computer savvy. They can just about open and save an email attachment. We are thinking of providing the data in two slightly different formats: one as Excel Friendly (using the options suggested above by adding a TAB, the other one as the 'master'. But this may be wishful thinking as some customers will not understand why we need to do this. Meanwhile we continue to keep explaining why they sometimes see 'wrong' data in their spreadsheets. Until Microsoft makes a proper change I see no proper resolution to this, as long as one has no control over how end-users use the files.

无需修改您的csv文件，您可以:

将excel格式单元格选项更改为“text” 然后使用“文本导入向导”定义csv单元格。 一旦导入，删除该数据 然后粘贴为纯文本

Excel将正确格式化和分离您的CSV单元格为文本格式，忽略自动日期格式。

有点愚蠢的工作，但它比修改csv数据之前导入。安迪·贝尔德(Andy Baird)和理查德(Richard)回避了这种方法，但遗漏了几个重要步骤。

SELECT CONCAT('\'',NOW(),'\''), firstname, lastname 
FROM your_table
INTO OUTFILE 'export.csv' 
FIELDS TERMINATED BY ',' 
ENCLOSED BY '\"' 
LINES TERMINATED BY '\n'

根据Jarod的解决方案和Jeffiekins提出的问题，你可以进行修改

"May 16, 2011"

to

"=""May 16, 2011"""

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 + "\""

如果在字段的开头放置一个倒置逗号，它将被解释为文本。

例子: 25/12/2008变成了25/12/2008

您还可以在导入时选择字段类型。