when i try loading .dat file it gives the following error Input must be a MAT-file or an ASCII file containing numeric data with same number of columns in each row.

Attachment is the file Iam trying to import

Answer 1

[Walter Roberson]

Line 50002 onward in the file has no initial coordinate, such as

,2.00E-17,7.80E-08

Try

T = rmmissing(readmatrix('duty.dat'));

which will discard those lines.

[Rachita Sarangi]

yes this is working.Thank you so much for your kind answer.