I am not a fully trained programmer, But I am able to do and undo designing websites with the power of WordPress and its endless plugins and themes.(My NGO website)
Of all my efforts made in uploading bulk data to many WordPress using various plugin, I found the WP Post Corrector as the most SIMPLEST to use,VERSATILE for newbies, FRIENDLY User interface that generate easy to follow error reports, almost TROUBLE FREE and STRAIGHT FORWARD and above all it is FREE.
I wish the author release a version compatible to other operating system apart form MS Office excel- .CSV on windows. As for me, am very comfortable with WP Post Corrector using wndows 7 64bit, MS 2007 office.