The data are a sub set of the well-documented work by Feenstra et al. freely distributed here. We simply eliminated the heterogeneous flows to non-countries (e.g. Asia NES) and those denominated in units different from tons, so to have a full internal comparability. This eliminated more than 200 000 rows where products sold were counted in units (e.g. sold 24000 items). Accordingly, total exports of a country is normally underestimated in our sub-set. But for the goals of our analysis, where competitive relations are at the centrestage, these cuts are not particularly relevant, the more so since we are just exhibiting how the special analytical methodology to elicit competitive strength can be apply to any data of suitable format.
Links: http://www.nber.org/papers/w11040 and http://cid.econ.ucdavis.edu/data/undata/undata.html

To import in competitor.xls, filter the dbf file by values of SITC4 (an identifier of product - for the meaning of the code see the related txt file),
using the DBFPlus reader and export in xls format. 
Then copy and paste all columns, except the SITC4 column.