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Anonymous
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How to resolve Expression.Error: Not a valid Win32 FileTime. Parameter name: fileTime Details

I am using Excel 2016 and the latest version of Power BI to get data from a folder. However, I am encountering the following error message: "Expression.Error: Not a valid Win32 FileTime. Parameter name: fileTime Details: J:\PUBLIC\DRIVENAME". I am unsure what is causing this issue and how to resolve it. Please review the question and provide any suggestions or solutions that may help me resolve this error. Thank you in advance for your help! What I tried: Data Source, from folder. Once I click edit or transform, I get the list of all the files in the folder, but 1 row is all ERROR. I have tried filtering by file extension and filtering by creation date to remove the error from the list of returned files.

1 REPLY 1
ChielFaber
Super User
Super User

From searching on the internet the problem might be that one of more of the files your trying to import is missing a created/modified date field. 


[Tip] Keep CALM and DAX on.
[Solved?] Hit “Accept as Solution” and leave a Kudos.
[About] Chiel | SuperUser (2023–2) |

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