file type

Use "file type" to describe a broad file category, such as a Portable Document Format (PDF) document or Graphics Interchange Format (GIF) file. It's okay to shorten the file type as an abbreviation.

Capitalize the abbreviation when it's used as an adjective or when it stands alone in text. An exception to the standard styling for file types is for configuration files (.conf files) which are styled like a file name extension.

"" Do this "" Don't do this

  • The upload must be in JSON format.

  • Upload photos as JPG files.

  • Download the topic as a PDF.

  • Save the export as a CSV file.

  • The TAR file can have a .tar, .tar.gz, or .tgz extension.

  • Update the stanza in the .conf file.

  • The upload must be a .json.

  • Upload photos as jpegs.

  • Download the topic as a pdf.

  • Save the export as a .CSV.

  • The TAR file can have a TAR, .tar.GZ, or .TGZ extension.

  • Update the stanza in the CONF file.