(PowerShell) XLSX Convert Sheet to CSV

Open an Excel spreadsheet (.xlsx) and loads a sheet into a CSV object.

Note: This example requires Chilkat v11.3.0 or greater.

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Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# .xlsx files are Zip archives
$zip = New-Object Chilkat.Zip
$success = $zip.OpenZip("qa_data/excel/fakeCompanies.xlsx")
if ($success -eq $false) {
    $($zip.LastErrorText)
    exit
}

$csv = New-Object Chilkat.Csv
$sheetNames = New-Object Chilkat.StringTable
$success = $csv.XlsxGetSheets($zip,$sheetNames)
if ($success -eq $false) {
    $($csv.LastErrorText)
    exit
}

if ($sheetNames.Count -eq 0) {
    $("There are no sheets in the .xlsx")
    exit
}

# Get the name of the 1st sheet.
$sheetName = $sheetNames.StringAt(0)

# Load the 1st sheet into the CSV.
# We could've also loaded the 1st sheet by passing an empty string for the sheet name.
$success = $csv.XlsxLoadSheet($zip,$sheetName)
if ($success -eq $false) {
    $($zip.LastErrorText)
    exit
}

# The Chilkat CSV API can now be used to read, modify, or insert cells.
# ...
# ...

$csvStr = $csv.SaveToString()
$($csvStr)

# Sample output:
# CompanyName,Address,City,State,Zip,Phone
# Acme Innovations LLC,7428 Westbrook Blvd,Oak Bend,IL,60514,630-555-2398
# BlueHorizon Data Systems,1850 Crestline Park Suite 210,Rivergate,CA,92814,714-555-8821
# Pinnacle Manufacturing Corp,3912 Industrial Loop,Maple Ridge,TX,77301,281-555-4477
# Evergreen Analytics Inc,1250 Highland Terrace,Stonefield,WA,98290,425-555-9914
# NovaTech Solutions Group,578 Marketview Drive,Clearwater,FL,33760,727-555-6032

# Save to a .csv file.
$success = $csv.SaveFile2("c:/temp/qa_output/fakeCompanies.csv","utf-8")
if ($success -eq $false) {
    $($csv.LastErrorText)
    exit
}