Hello,
There are a couple of problems with the data in the load data file you attached that is giving SAM trouble:
In Lines 8761 and 8763 there are extra values (Line 8761 Column 4 and Line 8763 Column 3).
Each row had two tabs to the right of the data.
Here is what those last lines look like in a text editor configured to show all characters:
I was able to fix your file by deleting the extra columns in the last three lines of the file, and deleting all of the tabs.
Best regards,
Paul.