Generically Transpose PowerShell Array Rows into Columns - arrays

Question

There are quite a few posts on SO that address PowerShell transposition. However, most of the code is specific to the use case or addresses data being gathered from a text/CSV file and does me no good. I'd like to see a solution that can do this work without such specifics and works with arrays directly in PS.
Example data:
Customer Name: SomeCompany
Abbreviation: SC
Company Contact: Some Person
Address: 123 Anywhere St.
ClientID: XXXX
This data is much more complicated, but I can work with it using other methods if I can just get the rows and columns to cooperate. The array things that "Name:" and "SomeCompany" are column headers. This is a byproduct of how the data is gathered and cannot be changed. I'm importing the data from an excel spreadsheet with PSExcel and the spreadsheet format is not changeable.
Desired output:
Customer Name:, Abbreviation:, Company Contact:, Address:, ClientID:
SomeCompany, SC, Some Person, 123 Anywhere St., XXXX
Example of things I've tried:
$CustInfo = Import-XLSX -Path "SomePath" -Sheet "SomeSheet" -RowStart 3 -ColumnStart 2
$b = #()
foreach ($Property in $CustInfo.Property | Select -Unique) {
$Props = [ordered]#{ Property = $Property }
foreach ($item in $CustInfo."Customer Name:" | Select -Unique){
$Value = ($CustInfo.where({ $_."Customer Name:" -eq $item -and
$_.Property -eq $Property })).Value
$Props += #{ $item = $Value }
}
$b += New-Object -TypeName PSObject -Property $Props
}
This does not work because of the "other" data I mentioned. There are many other sections in this particular workbook so the "Select -Unique" fails without error and the output is blank. If I could limit the input to only select the rows/columns I needed, this might have a shot. It appears that while there is a "RowStart" and "ColumnStart" to Import-XLSX, there are no properties for stopping either one.
I've tried methods from the above linked SO questions, but as I said, they are either too specific to the question's data or apply to importing CSV files and not working with arrays.

Answer 1

I was able to resolve this by doing two things:
Removed the extra columns by using the "-Header" switch on the Import-XLSX function to add fake header names and then only select those headers.
$CustInfo = Import-XLSX -Path "SomePath" -Sheet "SomeSheet" -RowStart 2 -ColumnStart 2 -Header 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18 | Select "1","2"
The downside to this is that I had to know how many columns the input data had -- Not dynamic. If anyone can provide a solution to this issue, I'd be grateful.
Flipped the columns and headers with a simple foreach loop:
$obj = [PSCustomObject]#{}
ForEach ($item in $CustInfo) {
$value = $null
$name = $null
if ($item."2") { [string]$value = $item."2" }
if ($item."1") { [string]$name = $item."1" }
if ($value -and $name) {
$obj | Add-Member -NotePropertyName $name -NotePropertyValue $value
}
}
I had to force string type on the property names and values because the zip codes and CustID was formatting as an Int32. Otherwise, this does what I need.