我知道这是个老话题了。对于像我这样的人来说，通过PowerShell COM对象使用Office 2013仍然有这个问题，可以使用opentext方法。问题是这个方法有很多参数，有时是相互排斥的。要解决这个问题，您可以使用本文介绍的invoke-namedparameter方法。 一个例子是

$ex = New-Object -com "Excel.Application"
$ex.visible = $true
$csv = "path\to\your\csv.csv"
Invoke-NamedParameter ($ex.workbooks) "opentext" @{"filename"=$csv; "Semicolon"= $true}

不幸的是，我刚刚发现当单元格包含换行符时，该方法会以某种方式破坏CSV解析。这是CSV支持的，但微软的实现似乎有bug。 此外，它不知何故没有检测到德语特有的字符。给它正确的文化并没有改变这种行为。所有文件(CSV和脚本)都使用utf8编码保存。 首先，我编写了以下代码，逐个单元插入CSV。

$ex = New-Object -com "Excel.Application"
$ex.visible = $true;
$csv = "path\to\your\csv.csv";
$ex.workbooks.add();
$ex.activeWorkbook.activeSheet.Cells.NumberFormat = "@";
$data = import-csv $csv -encoding utf8 -delimiter ";"; 
$row = 1; 
$data | %{ $obj = $_; $col = 1; $_.psobject.properties.Name |%{if($row -eq1){$ex.ActiveWorkbook.activeSheet.Cells.item($row,$col).Value2= $_ };$ex.ActiveWorkbook.activeSheet.Cells.item($row+1,$col).Value2 =$obj.$_; $col++ }; $row++;}

但这太慢了，所以我找了个替代品。显然，Excel允许您使用矩阵设置单元格范围的值。所以我在这篇博客中使用算法将CSV转换为一个多数组。

function csvToExcel($csv,$delimiter){
     $a = New-Object -com "Excel.Application"
     $a.visible = $true
     
    $a.workbooks.add()
     $a.activeWorkbook.activeSheet.Cells.NumberFormat = "@"
     $data = import-csv -delimiter $delimiter $csv; 
     $array = ($data |ConvertTo-MultiArray).Value
     $starta = [int][char]'a' - 1
     if ($array.GetLength(1) -gt 26) {
         $col = [char]([int][math]::Floor($array.GetLength(1)/26) + $starta) + [char](($array.GetLength(1)%26) + $Starta)
     } else {
         $col = [char]($array.GetLength(1) + $starta)
     }
     $range = $a.activeWorkbook.activeSheet.Range("a1:"+$col+""+$array.GetLength(0))
     $range.value2 = $array;
     $range.Columns.AutoFit();
     $range.Rows.AutoFit();
     $range.Cells.HorizontalAlignment = -4131
     $range.Cells.VerticalAlignment = -4160
}

 function ConvertTo-MultiArray {
     param(
         [Parameter(Mandatory=$true, Position=1, ValueFromPipeline=$true)]
         [PSObject[]]$InputObject
     )
     BEGIN {
         $objects = @()
         [ref]$array = [ref]$null
     }
     Process {
         $objects += $InputObject
     }
     END {
         $properties = $objects[0].psobject.properties |%{$_.name}
         $array.Value = New-Object 'object[,]' ($objects.Count+1),$properties.count
         # i = row and j = column
         $j = 0
         $properties |%{
             $array.Value[0,$j] = $_.tostring()
             $j++
         }
         $i = 1
         $objects |% {
             $item = $_
             $j = 0
             $properties | % {
                 if ($item.($_) -eq $null) {
                     $array.value[$i,$j] = ""
                 }
                 else {
                     $array.value[$i,$j] = $item.($_).tostring()
                 }
                 $j++
             }
             $i++
         }
         $array
     } 
} 
csvToExcel "storage_stats.csv" ";"

你可以按原样使用上面的代码;它应该将任何CSV转换为Excel。只需将路径更改为CSV和底部的分隔符。

这是我知道如何在不搞乱文件本身的情况下完成这一点的唯一方法。就像使用Excel一样，我用头在桌子上敲了几个小时才学会这一点。

Change the .csv file extension to .txt; this will stop Excel from auto-converting the file when it's opened. Here's how I do it: open Excel to a blank worksheet, close the blank sheet, then File => Open and choose your file with the .txt extension. This forces Excel to open the "Text Import Wizard" where it'll ask you questions about how you want it to interpret the file. First you choose your delimiter (comma, tab, etc...), then (here's the important part) you choose a set columns of columns and select the formatting. If you want exactly what's in the file then choose "Text" and Excel will display just what's between the delimiters.

(EXCEL 2016及以后版本，实际上我没有尝试过旧版本)

打开新空白页 转到“数据”标签 点击“来自文本/CSV”，选择CSV文件 检查预览您的数据是否正确。 在сase中，当某些列被转换为日期时，单击“编辑”，然后通过单击列头部的日历选择类型文本 点击“关闭并加载”

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。

2018

唯一适合我的解决方案(也没有修改CSV)。

Excel 2010:

创建新工作簿 数据>从文本>选择您的CSV文件 在弹出框中选择“Delimited”单选按钮，然后点击“Next >” 分隔符复选框:只勾选“逗号”，取消勾选其他选项，然后单击“下一步>” 在“数据预览”中，滚动到最右，然后按住shift并单击最后一列(这将选中所有列)。现在在“列数据格式”中选择单选按钮“文本”，然后单击“完成”。

Excel office365:(客户端版本)

创建新工作簿 数据>从文本/CSV >选择您的CSV文件 数据类型检测>不检测

注意:Excel office365 (web版本)，当我写这篇文章时，你将无法做到这一点。

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.