This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)
Basic Formats
Mathematica can routinely import and export hundreds of megabytes in all standard basic formats—in addition to supporting hundreds of more structured formats.
"List" numbers or strings, one per line
"Table" arbitrary table of numbers or strings
"CSV"  ▪ "TSV"  ▪ "XLS"  ▪ ...
"Text" plain text as a single string, or broken into lines, words, etc.
"String" arbitrary data represented as a Mathematica string
"Binary" binary format with specifiable elements
"Package" Mathematica .m package source