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Last tested: Dec 9, 2020
The Problem
User has added value_format to their field which is correct but no changes on the explore side
A Solution
They most likely have not set the type of their dimension at all or have not set it to be numeric. Make sure they have defined type: number for that field as per our docs;
To apply Excel-style formatting to measures via value_format, make sure the measure is numeric and not of type: string.
https://docs.looker.com/reference/field-params/value_format
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