Quickplot: View *.amu file - Forum - Delft3D Flexible Mesh

Dear all,
I have created an *.amu and *.amv file from a script which interpolated wind data from some stations to my model domain. I am uncertain about the convention on how D-Flow will interprete the the velocity values in the files: first value --> bottom left corner or top left corner? I am uncertain, because  the lower left corner id defined as the origin of the grid.
In order to visualize the interpretation, I wanted to use Quickplot. I tried ARC/INFO Asicii Grid Files, ArcInfo Ungenerate Files and Delft3D/SOBEK Meteo files as file formats. However, for all I got (different) error messages with the attached file. For example for the Delft3D/SOBEK Meteo files:

• Error while opening
• D:\MasterThesis\Grid_Develop\00_Original_Data\wind-pressure_venlag\Nov12Stormperiod_07_to_17_Nov\windxdir.amu
• as Delft3D/SOBEK Meteo Files:
• Index exceeds matrix dimensions.
• In asciiwind>value2time at line 633
• In asciiwind>Local_open_file at line 332
• In asciiwind at line 68
• In private\qp_fmem at line 591
• In private\qp_proxy at line 42
• In d3d_qp>d3d_qp_core at line 335
• In d3d_qp at line 43

Is there somebody that either could suggest which file type should be specificed in Quickplot in order to view *.amu files or indicate how the velocity values are interpreted by the D-Flow?
Thank you in advance,
Julius

EDIT: I am using Quickplot version 2.60.67807 (64bit) which is delivered along with Delft3D-Suite 2021.02.