* support dual-byte (CJK) encodings as output 
* Find a way to extract rowspan information from XLS.
* Make XLS2CSV to output sheet partially when memory exhausted
* Plain-text output method for XLS2CSV and its support in wordview
* textmode (ck) wordview
* Improve RTF support
* Extract text from Top Level OLE objects ???
* Write correct TeX commands for most often used mathematical symbols
   (20xx-25xx) into TeX spec chars  file
* Add handling of tables & footnotes
* Fastsave support
