Final answer:
The short-term forecast from Workforce Management is usually downloaded in Excel spreadsheet format for ease of use and broad compatibility with analysis tools. (Option C).
Step-by-step explanation:
When you export a short-term forecast in Workforce Management, the information is typically downloaded in c) Excel spreadsheet format.
This allows for a broad compatibility with various data analysis tools and eases the process of sharing and interpreting the forecast data.
Formats like Pig Latin, Morse code, and Hieroglyphics are not practical for data export and are more related to language or ancient writing systems rather than modern data representation.