Question

$Path = 'D:/ETL_Data/TwitchTVData.xlsx'
$csvPath = 'D:/ETL_Data/TwitchTVData2.csv'

# Open the Excel document and pull in the 'Sheet1' worksheet
$Excel = New-Object -Com Excel.Application
$Workbook = $Excel.Workbooks.Open($Path)
$page = 'Sheet1'
$ws = $Workbook.Worksheets | Where-Object {$_.Name -eq $page}
$Excel.Visible = $true
$Excel.DisplayAlerts = $false

# Set variables for the worksheet cells, and for navigation
$cells = $ws.Cells
$row = 1
$col = 4
$formula = @"
=NOW()
"@

# Add the formula to the worksheet
$range = $ws.UsedRange
$rows = $range.Rows.Count
for ($i=0; $i -ne $rows; $i++) {
    $cells.Item($row, $col) = $formula
    $row++
}

$ws.Columns.Item("A:D").EntireColumn.AutoFit() | Out-Null
$ws.Columns.Range("D1:D$rows").NumberFormat = "yyyy-MM-dd hh:mm"

$Excel.ActiveWorkbook.SaveAs($csvPath)
$Excel.Quit()

[System.GC]::Collect()
[System.GC]::WaitForPendingFinalizers()
[System.Runtime.Interopservices.Marshal]::ReleaseComObject($excel)

https://www.experts-exchange.com/questions/27996530/How-to-convert-and-xlsx-spreadsheet-into-CSV.html#answer38780402-20

我试图遵循这一点，但由于某种原因，我SaveAs()不起作用。它给了我一个错误

无法访问文件'D：// ETL_Data / E567DF00

我需要做些什么才能将其保存到CSV？

编辑：

注释中建议的没有fileformat参数6的确切错误：

Microsoft Excel cannot access the file 'D:\//ETL_Data/8011FF00'. There are
several possible reasons:
o The file name or path does not exist.
o The file is being used by another program.
o The workbook you are trying to save has the same name as a currently open
  workbook.
At D:\PS_Scripts\twitchExcelAddSnapShot.ps1:32 char:1
+ $Excel.ActiveWorkbook.SaveAs($csvPath)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : OperationStopped: (:) [], COMException
    + FullyQualifiedErrorId : System.Runtime.InteropServices.COMException

fileformat参数6的确切错误：

The file could not be accessed. Try one of the following:
o Make sure the specified folder exists.
o Make sure the folder that contains the file is not read-only.
o Make sure the file name does not contain any of the following characters:
  <  >  ?  [  ]  :  | or  *
o Make sure the file/path name doesn't contain more than 218 characters.
At D:\PS_Scripts\twitchExcelAddSnapShot.ps1:32 char:1
+ $Excel.ActiveWorkbook.SaveAs($csvPath,6)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : OperationStopped: (:) [], COMException
    + FullyQualifiedErrorId : System.Runtime.InteropServices.COMException

Answer 1

虽然PowerShell在路径分隔符方面非常宽容，但COM +服务器（如Excel.Application）可能不是。

将$csvPath变量值更改为使用\而不是/：

$csvPath = 'D:\ETL_Data\TwitchTVData2.csv'

Answer 2

使用背景信息 补充 Mathias R. Jessen's helpful answer：

似乎 Excel的特定于应用程序的行为是导致问题的原因，与使用的基础子系统或API无关。（Excel的自动化API恰好是COM服务器。）
我不明白为什么Excel会这样做 - 它也会在交互式使用中这样做，尽管你可以说至少在 programmatic 中使用它应该允许{{ 1}}。

提供广义建议：

在 Windows 上，为了安全起见，请使用/，尤其是在处理应用程序级自动化API时，尽管在系统API \级别应该工作也好 - 见下文。
在跨平台代码中，使用/（但要注意上述例外情况; /报告适合平台的（主要）字符）。

虽然很少使用，但在API级别的 Windows允许可互换地使用[System.IO.Path]::DirectorySeparatorChar和\ （显然是goes back to the DOS 2.0 days），当引入对目录的支持时），并且也反映在更高级别的子系统中，如以下示例所示。

这是最小示例，用# PS: # Should output c:\windows\win.ini (Get-Item c:/windows/win.ini).FullName # .NET: # Should return the 1st child dir.'s path. # Note that the child directory names will be appended with "\", not "/" [System.IO.Directory]::GetDirectories('c:/windows/system32') | Select-Object -First 1 # COM: # Should return $true (New-Object -ComObject Scripting.FileSystemObject).FileExists('c:/windows/win.ini') # Windows API: # Should return a value such as 32. (Add-Type -PassThru WinApiHelper -MemberDefinition '[DllImport("kernel32.dll")] public static extern uint GetFileAttributes(string lpFileName);')::GetFileAttributes('c:/windows/win.ini') # cmd.exe # Note: quoting matters here, so that tokens with / aren't mistaken for options. # INCONSISTENT: # attrib: works cmd /c 'attrib "c:/windows/win.ini"' # dir: works with DIRECTORIES, but fails with FILES cmd /c 'dir /b "c:/windows/system32"' # OK cmd /c 'dir /b "c:/windows/win.ini"' # FAILS with 'File not found' cmd /c 'dir /b "c:/windows\win.ini"' # Using \ for the FILE component (only) works. 演示了 Excel的问题：

/

为什么PowerShell不想将我的文件保存为CSV

2 个答案: