Local file authentication question

[threatcon]

I have been searching online and can't find much doumentation around working with local files. Here is my question/issue.

In my connector I create the credentials for my DataSource.Kind. The shared function is supposed to retrieve a local fileand run a custom unzip function. This is where I run into the credentials problem. The query errors out becuase it needs credentials for the local file, but there is no way to set them.

Is this by design or am I doing something wrong?

The unzip function works, I use it as a stand alone function in Excel PowerQuery and Power Bi, so the function is not broken. I can't access the file.

` [DataSource.Kind="IntakeForm", Publish="IntakeForm.Publish"]
shared IntakeForm.ZipFormat = (fileName) =>

let
getFileContents = File.Contents(fileName),
extractArchive = File.Unzip(getFileContents)
in
extractArchive;

// Data Source Kind description
IntakeForm = [
Authentication = [
Windows = [],
Anonymous = []
]
]; `

Error message:
Credentials are required to connect to the IntakeForm source. (Source at {"fileName":"E:\local\file\file.zip"}.)

The credential is there... I think.

{ "DataSource": { "Kind": "IntakeForm", "NormalizedPath": "{\"fileName\":\"E:\\\\local\\\\Projects\\\\file\\\\\file.zip\"}", "Path": "{\"fileName\":\"E:\\\\local\\\\Special Projects\\\\file\\\\file.zip\"}" }, "AuthenticationKind": "Windows", "PrivacySetting": "None", "Properties": {} }