Can PowerBI handle a large flat file?

Hi,

Let's just say I don't know anything about RDMS.

What If I use a flat file in uploading my data to PowerBI

State,City,SiteName,Manager,Supervisor,Employee,,Date,Data 1, Data 2, .... Data 50

or maybe picture 100 columns by 10,000 rows.

Can Power BI handle something like that