Utility - Get File Extension


The 'Utility - Get File Extension' action for Power Automate returns the file extension for the filename value provided.

Video Guide

Get the file extension of a filename in Power Automate

Credit Count

This is a Utility action and therefore consumes only 0.05 credits per operation (except 1 credit on the free plan). For example, 100 operations will consume 5 credits on a trial and all paid plans.

Default Parameters

The default 'Utility - Get File Extension' flow action parameters are detailed below:

  • Filename - The filename to obtain the file extension from

Advanced Parameters

The advanced 'Utility - Get File Extension' flow action parameters are detailed below:

  • Case - Set the case of the file extension (Lower or Upper)

Return Parameters

Action Specific Return Values

  • Result - The file extension as a string

Standard Return Values

  • OperationId - The unique ID assigned to this operation.
  • HttpStatusCode - The HTTP Status code for the response.
  • HttpStatusMessage - The HTTP Status message for the response.
  • Errors - An array of error messages should an error occur.
  • Operation Status - Indicates whether the operation has been completed, has been queued or has failed.
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