The Bar Chart displays data of one or more series as bars:

Bar Chart

By changing the chart typ to Horizontal Bar Chart the chart changes to the specified type. No other changes, besides optionally changing the Number Formatter Y-Axis settings to the Number Formatter X-Axis settings and vice versa:

Horizontal Bar Chart

Expected Data and Graph Designer

The Bar Chart expects data in a two (or more) column format such as:

23 January3824
24 January3924
25 January4024
26 January4024

In the Graph Designer you can then select the column you want to use for your x-axis (for the Horizontal Bar Chart the selected x-axis will be the y-axis):

Graph Designer X-Axis

Hence, the x-axis column does not need to be the first column. However, for consistency purposes it is recommended to always use your first column for the x-axis.

For each column, besides the one used by the x-axis one bar will be displayed.