A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
The "last saved by" name is also available to Windows:
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I just haven't found a way to sort on it in Windows.
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I found this PowerShell question that seems to contain the seed of an answer for you. But I don't know enough PowerShell to tweak it to work for Excel
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https://groups.google.com/forum/#!topic/microsoft.public.windows.powershell/CGl6H9iTJL8
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This free PowerShell script download:
https://gallery.technet.microsoft.com/scriptcenter/Get-Word-built-in-document-a688a1ce
also works on Word documents. But it should be tweakable to work on Excel.
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You could also ask this question in the technet forum, referring to the 2 links above to get help adapting the tips in them to do what you want.
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