我在Excel 2003和2007中找到了一个简单的方法。打开一个空白的xls工作簿。然后进入数据菜单，导入外部数据。选择您的csv文件。通过向导，然后在“列数据格式”中选择任何需要强制“文本”的列。这将以文本格式导入整个列，防止Excel试图将任何特定的单元格作为日期处理。

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 + "\""

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.

CSV -用逗号分隔的值。只需通过文本编辑器创建/编辑，而不是xls/xlsx/exel。 在编辑时，您可以设置所需的格式的日期，它必须保持完整。 这是假设同样的文件将被以编程方式处理。

我发现在双引号前加一个'='就能达到你想要的效果。它强制数据为文本。

如。=“2008-10-03”=“文本”

编辑(根据其他帖子):由于Jeffiekins指出的Excel 2007漏洞，应该使用Andrew提出的解决方案:"=""2008-10-03""" "

这周我刚刚遇到了这个惯例，它似乎是一个很好的方法，但我在任何地方都找不到它。有人熟悉吗?你能举出出处吗?我没有找了几个小时，但我希望有人会认识到这种方法。

例1:=("012345678905")显示为012345678905

例2:=("1954-12-12")显示为1954-12-12，而不是12/12/1954。