I have setup an automatic downloading of a CSV file on a daily basis.

This file is being imported into Power BI Online. There's no way to do any manipulation on the file before importing it in PowerBI online (in Desktop there is, but I cannot use it in this case).

One of the columns has the data in the following format: April 01 2019, 01:00

So it is treated as text, but I want it do some manipulations to it, so that it will be treated as a date.

It would have to be something like a daily scheduled task via a batch file or through another excel file.
It is stored on OneDrive. Maybe I can use another excel file that will be linked to this one?

Any ideas how to achieve it?

Thanks