is it possible to read an Excel through powershell like this? - excel

Question

I have this excel
every row is an automation script I need to execute with certain parameters, the excel is because every script receives different parameters, and I need to do a powershell script that reads the excel file and for each row, execute that process id(script) and send those parameters
is there a way to do that? is it doable?
so far I have this
$file = "C:\Users\MX02689\Documents\Parametros.xlsx"
$sheetName = "Sheet1"
$objExcel = New-Object -ComObject Excel.Application
$workbook = $objExcel.Workbooks.Open($file)
$sheet = $workbook.Worksheets.Item($sheetName)
$objExcel.Visible=$false
$rowMax = ($sheet.UsedRange.Rows).count
$colMax = ($sheet.UsedRange.Columns).count
$rowName,$colName = 1,1
#the idea here is that for each row that has values do this
for($i=1;$i-le $colMax-1; $i++)
#The idea here is that if (parameter 1 -eq 1 ){
execute the command we use to send the scripts process id; "parameter2 parameter 3 parameter 4"
}else{
skip the row and go to the next one
}
{
Write-Output("" + $sheet.Cells.Item($rowName,$colName+$i).text)
}
am I in the right direction? thank you for the help :)
am I in the right direction? is it doable what Im trying to do? is there a optimized way to achieve this? thank you for your help :)
Greetings

Answer 1

Using Excel is not the fastest or easiest way of doing this with PowerShell.
It can be done like this:
$file = "D:\Parametros.xlsx"
$objExcel = New-Object -ComObject Excel.Application
$workbook = $objExcel.Workbooks.Open($file)
$sheet = $workbook.Worksheets.Item(1)
$objExcel.Visible = $false
$rowMax = ($sheet.UsedRange.Rows).count
$colMax = ($sheet.UsedRange.Columns).count
for ($row = 2; $row -le $rowMax; $row++) { # skip the header row
$params = #()
for ($col = 1; $col -le $colMax; $col++) {
$params += $sheet.Cells.Item($row, $col).Value()
}
# execute the command. For demo, just show the parameters used
'Invoke-Command parameters: {0}' -f ($params -join ', ')
}
$objExcel.Quit()
# clean-up used Com objects
[System.Runtime.Interopservices.Marshal]::ReleaseComObject($sheet) | Out-Null
[System.Runtime.Interopservices.Marshal]::ReleaseComObject($workbook) | Out-Null
[System.Runtime.Interopservices.Marshal]::ReleaseComObject($objExcel) | Out-Null
[System.GC]::Collect()
[System.GC]::WaitForPendingFinalizers()
Far more convenient would be to save your Excel file as CSV and use that:
Import-Csv -Path 'D:\Parametros.csv' | ForEach-Object {
# execute the command. For demo, just show the parameters used
'Invoke-Command parameters: {0}, {1}, {2}, {3}' -f $_.'process id', $_.parameter1, $_.parameter2, $_.parameter3, $_.parameter4
}
Demo output for both methods:
Invoke-Command parameters: 235522, 1, testinguser3, Mko12345, something
Invoke-Command parameters: 235266, 0, testinguser4, Mko12346, something
Invoke-Command parameters: 235266, 1, testinguser5, Mko12347, something
From your comment, I now understand what the "1" or "0" means in parameter1.
Below find the adjusted codes for Excel aswell as the CSV method:
Method for Excel:
$file = "D:\Parametros.xlsx"
$objExcel = New-Object -ComObject Excel.Application
$workbook = $objExcel.Workbooks.Open($file)
$sheet = $workbook.Worksheets.Item(1)
$objExcel.Visible = $false
$rowMax = ($sheet.UsedRange.Rows).count
$colMax = ($sheet.UsedRange.Columns).count
for ($row = 2; $row -le $rowMax; $row++) { # skip the header row
$params = #()
for ($col = 1; $col -le $colMax; $col++) {
$params += $sheet.Cells.Item($row, $col).Value()
}
# if the second parameter value converted to int = 1, proceed; if 0 skip the line
if ([int]$param[1] -ne 0) {
# execute the command. For demo, just show the parameters used
'Invoke-Command parameters: {0}' -f ($params -join ', ').TrimEnd(", ")
}
}
$objExcel.Quit()
# clean-up used Com objects
[System.Runtime.Interopservices.Marshal]::ReleaseComObject($sheet) | Out-Null
[System.Runtime.Interopservices.Marshal]::ReleaseComObject($workbook) | Out-Null
[System.Runtime.Interopservices.Marshal]::ReleaseComObject($objExcel) | Out-Null
[System.GC]::Collect()
[System.GC]::WaitForPendingFinalizers()
Method for CSV file:
Import-Csv -Path 'D:\Parametros.csv' | ForEach-Object {
# get the field values from the row in array $params (not a fixed number of fields)
$params = #($_.PsObject.Properties).Value
# if the second parameter value converted to int = 1, proceed; if 0 skip the line
if ([int]$params[1] -ne 0) {
# execute the command. For demo, just show the parameters used
'Invoke-Command parameters: {0}' -f ($params -join ', ').TrimEnd(", ")
}
}