Over the years, e-discovery technology and best practices have focused on improving processing of standard documents like word processing files, emails and spreadsheets. "Special" or different files—like audio/video, texts in foreign languages, short message data and, more recently, proprietary applications—have been left behind, slowing the processing and reviewing of these files and thus entire e-discovery projects. More recently, specialized technology has been developed and improved to handle these files, as have workflows to take advantage of the platforms available.