I am looking for a source (dictionary, website, software, ...) which would systematically give the basic triliteral or quadriliteral root for each word of the Hebrew Bible. Currently, I use Logos 6 with the Lexham Interlinear Bible and it only indicates roots for which there is at least one other words used in the Bible which is derived from that root. As a result the roots of many words are not indicated even though they may be quite common.
Ideally, what I am looking for might take the form of an Excel Spreadsheet (or any another file format) which would have a "root" column filled in for every Strong's Number or for every form (or at least Lemma) which appears in the Biblical text.
The reason I need this is that I would like to be able to link the Biblical Text to material in other Semitic Languages (Aramaic, Ugaritic, Akkadian, Arabic) to compare the semantic domain of each word or word-combination in various languages. The best way to do this is obviously through the root forms.
Thanks for any ideas.