Microsoft Word is a word processing program, frequently distributed as a part of Microsoft Office.
"... rtf documents can also be printed with 'exec write /p $filename'".
catdoc [L1 ] is recommended for .doc -> .txt. Other pertinent conveniences include Antiword, KOffice, OpenOffice, unoconv, Word Reaper, and Abiword.
if {[string length Word]==4} {puts "Word is a four-letter word"} ;# :^)
The amazing PT has written a Tcl VFS filesystem which accesses .doc-s [L2 ]--well, their "storage containers", more precisely; practical use still requires decoding of Word's binary data format.