Write a global variable to file

save x     save[x]

Where x is a symbol atom or vector of the form [path/to/]v[.ext] in which

• v is the name of a global variable
• path/to/ is a file path (optional)
• .ext is a file extension (optional)

writes global variable/s v etc. to file and returns the filename/s.

File path

If a file

• exists, it is overwritten
• does not exist, it is created, with any required parent directories

Format

The format used depends on the file extension:

(none)   binary
 csv     comma-separated values
 txt     plain text
 xls     Excel spreadsheet
 xml     Extensible Markup Language (XML)