Bulk downloads of Input-Output tables from OECD.STAT
Interested users may find ready-to-use Excel files, one per country one variable per page, available from OECD.STAT. Clicking “Ready-made files” 6th icon from left on horizontal bar at the top of the page at http://stats.oecd.org/Index.aspx?DataSetCode=STAN_IO_TOTAL gives access to these:
Here you will also find an ASCII version of the complete database for ‘easy’ loading into locally used applications (e.g. SAS, SQL and STATA).
For customized downloads, you can use the pivot table option to create a flat-file for export that might be best suited to your needs: first icon from left "Customise", "Layout". Possibly, by pre-selecting the countries, variables, industries, years of interest.