Get (all) Text for an Excel-File

Is there a function which returns all the text in an excel-file.
I am asking because I want to fulltext-index an excel-file.

@Markus1980Wien,

Well, you may save to text format e.g CSV, Tab delimited or txt if you want to save data/text only. See the document sections with examples for your reference:

Hope, this helps a bit.