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zplume/FormatO365AuditLogs.ps1

Created June 9, 2017 09:29
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Converts the bizarre JSON-in-CSV format of O365 audit logs to a more useful CSV of the JSON data. Run the script from the directory containing the $inputFile or specify a full path rather than just a file name.
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FormatO365AuditLogs.ps1
$inputFile = "AuditLog_2017-05-18_2017-05-27.csv"
$outputFile = "AuditLogData.csv"
Import-Csv -Path $inputFile | ForEach-Object { $_.AuditData } | ConvertFrom-Json | Export-Csv -Path $outputFile -NoTypeInformation
@layaute
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layaute commented Apr 27, 2022 •
edited
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Thank you very much for this script zplume!

There is a bug beacuse there is json inside json and it print only the "first object":
"ExtendedProperties"":[{""Name"":""ResultStatusDetail"",""Value"":""Success""},{""Name"":""UserAgent"",""Value"":""Android/10-EAS-2.0""},{""Name"":""UserAuthenticationMethod"",""Value"":""16""},{""Name"":""RequestType"",""Value"":""OAuth2:Token""}]
Script Result is:
ExtendedProperties=System.Object[]

Found this function that can help: https://stackoverflow.com/questions/45829754/convert-nested-json-array-into-separate-columns-in-csv-file

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