释放用完的Excel COM组件

How to Open; SaveAs; then Close an Excel 2013 (macro-enabled) workbook from PowerShell4

1. (http://www.cnblogs.com/fuhj02/archive/2010/12/23/1914313.html)

$xl.Quit()

$ws = $null

$wb = $null

$xl = $null

[GC]::Collect()

2.(http://technet.microsoft.com/en-us/library/ff730962.aspx)

$wb.Close()

$ws = $null

$wb = $null

$xl.Quit()

[System.Runtime.InteropServices.Marshal]::ReleaseComObject($xl)

Remove-Variable xl

参考:

http://stackoverflow.com/questions/19908302/how-to-open-saveas-then-close-an-excel-2013-macro-enabled-workbook-from-powe