epplus Columns and Rows Resizing rows and columns
Example
//Set the row "A" height to 15
double rowHeight = 15;
worksheet.Row(1).Height = rowHeight;
//Set the column 1 width to 50
double columnWidth = 50;
worksheet.Column(1).Width = columnWidth;
When Bestfit is set to true, the column will grow wider when a user inputs numbers in a cell
worksheet.Column(1).BestFit = true;
