Hi everyone, this is my first post on the physics forums. I am trying to use the readtable command in Matlab to make a table from an Excel file. Matlab is still new to me so I'm running into problems a lot. When I input T = readtable('myfile.txt'), I get an error that says "??? Undefined function or method 'readtable' for input arguments of type 'char'." Can anybody tell me what to do differently? I followed the Matlab instructions to the tee.