The array class ha a static method to reverse arrays of any objects in PowerShell.
Syntax:
[array]::Reverse($ArrayToReverse)
Example
PS C:\> $Files = ls "C:\temp\ReverseTest\"
PS C:\> $Files
Directory: C:\temp\ReverseTest
Mode LastWriteTime Length Name
---- ------------- ------ ----
-a---- 2/22/2022 3:36 PM 0 File 0.txt
-a---- 2/22/2022 3:36 PM 0 File 1.txt
-a---- 2/22/2022 3:36 PM 0 File 2.txt
-a---- 2/22/2022 3:36 PM 0 File 3.txt
-a---- 2/22/2022 3:36 PM 0 File 4.txt
-a---- 2/22/2022 3:36 PM 0 File 5.txt
-a---- 2/22/2022 3:36 PM 0 File 6.txt
-a---- 2/22/2022 3:36 PM 0 File 7.txt
-a---- 2/22/2022 3:36 PM 0 File 8.txt
-a---- 2/22/2022 3:36 PM 0 File 9.txt
PS C:\> [array]::Reverse($Files)
PS C:\> $Files
Directory: C:\temp\ReverseTest
Mode LastWriteTime Length Name
---- ------------- ------ ----
-a---- 2/22/2022 3:36 PM 0 File 9.txt
-a---- 2/22/2022 3:36 PM 0 File 8.txt
-a---- 2/22/2022 3:36 PM 0 File 7.txt
-a---- 2/22/2022 3:36 PM 0 File 6.txt
-a---- 2/22/2022 3:36 PM 0 File 5.txt
-a---- 2/22/2022 3:36 PM 0 File 4.txt
-a---- 2/22/2022 3:36 PM 0 File 3.txt
-a---- 2/22/2022 3:36 PM 0 File 2.txt
-a---- 2/22/2022 3:36 PM 0 File 1.txt
-a---- 2/22/2022 3:36 PM 0 File 0.txt
PS C:\>
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