Hi Gautam,
I see, there is a issue with different tecplot versions... both tecplot 10, and the latest tecplot 360 crash when using elements ELEMENTS
Replacing this identifier with "E" fixes the problem.
Please find attached one of tecplot outout files affected by this same problem, and the error printout when trying to load the file into tec 10.
Can you check if with tecplot 9 you can read "E" rather than "ELEMENTS"?
I thought nobody was using tecplot for ugrids, and there was an error in the header just because nobody tested before...
Paolo