Excel replace "." with "" and then replace "," with "."

Hi, Team!
I need to copy these 2 columns from excel and move them to another excel.
I use the assign activity
selectedColumnsDT=DTexcel.DefaultView.ToTable(false,DTexcel.Columns(“PricePC”).ColumnName,DTexcel.Columns(“ValLine”).ColumnName)

But I want to replace on these columns for the first time “.” with “” and then “,” with “.”
How can I do this?

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If its already in Excel then you can try using Substitute function in Cell then Auto fill range.