We can't say it often enough: File names with special characters are always a bad idea. You can use underscore, but many windows software tools don't like dots, slashes, spaces, or similar.

It that's not the problem reason, look in the t6 file with the History script or the History Viewer. You can then probably see what's wrong, such as invalid time stamps or wrong order.

If all fails: We also have a data conversion service.