GherkinFormatterExtension 1.0 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free software for Mac OS X was originally developed by Dan Waltin. We recommend checking the downloaded files with any free antivirus. The application lies within Developer Tools, more precisely Webmaster Tools.
From the developer:
Gherkin Formatter Extension is a source editor extension for Xcode. The application is designed to help you format tables in Gherkin documents. You need to place the cursor somewhere in the table, invoke the extension, and the table will be formatted automatically.
You may want to check out more software for Mac, such as iGooMap, Navicat for Oracle or Dragonfly, which might be related to GherkinFormatterExtension.