Save an open Excel sheet using Powershell - powershell

Question

I am completely newbie to Powershell. Need your help in saving an opened excel sheet using Powershell.
Script goes something like this
$xlPasteValues = -4163
$xlCellTypeLastCell = 11
$xl = new-object -comobject excel.application
$xl.Visible = $True
$xl.DisplayAlerts = $False
$wb = $xl.Workbooks.Add()
$i = 1
$collection = Get-ChildItem C:\Test\* -include *.csv # Change the location of your CSV files here.
$length = 4
foreach ($item in $collection) {
$wb1 = $xl.Workbooks.Open("$item")
$array = $item.ToString()
$delim = "\"
$SheetName = $array.split($delim)
$s = $SheetName[2]
$sn = $s.split(".")
$nsn = $sn[0]
$ws1 = $wb1.worksheets | where {$_.name -eq $nsn}
Write-Host $item $nsn
$used = $ws1.usedRange
$used.Select()
$used.copy()
$wb.Activate()
$ws = $wb.Sheets.Add()
$ws2 = $wb.worksheets | where {$_.name -eq "sheet$i"}
[void]$ws2.Range("A1").PasteSpecial(-4163)
$ws2.name = $nsn
$i++
$wb1.Close()
}
Add-Type -AssemblyName Microsoft.Office.Interop.Excel
$xlFixedFormat =[Microsoft.Office.Interop.Excel.XlFileFormat]::xlWorkbookDefault
$Excel = New-Object -comobject Excel.Application
$Excel.Visible = $true

Answer 1

Your question was rather vague so I'm assuming that you want to know how to open and save an Excel document through Powershell.
Open your Excel Document using New-Object
$a = New-Object -COM "Excel.Application"
$a.Visible = $true
$b = $a.Workbooks.Open("C:\PATH\TO\YOUR\EXCEL\sheet.xlsx")
Save and close your document
$b.Save()
$b.Close()

Answer 2

Check out my PowerShell Excel Module on Github. You can also grab it from the PowerShell Gallery.
Then try:
$xlFileName="c:\temp\test.xlsx"
dir *.csv |
ForEach {
$sheetName=$_.Name.Split('.')[0]
Import-Csv $_.FullName |
Export-Excel $xlFileName -WorkSheetname $sheetName
}
Invoke-Item $xlFileName