Hello experts,
I try to load a csv with several records and I have the accounts in columns (multicolumn). When the first account column has a value, I see the records correctly in the DataLoadWorkbench:

On the other hand, if the first column of Account has a missing value, I don't see the rest of Accounts in DataLoadWorkbench.
CSV screenshot:

One solution is to force a 0 in the first Account if there is no value (red cell), but I cannot use this solution because my customer provide this type of file and I can't modify.
What kind of Mapping could I do to fix this issue?
Regards