How to remove empty cells and rows from file using ExcelDataReader?

AFAIK, There is not any simple way to filter empty columns or rows for it my best try is:

// use ExcelDataTableConfiguration.FilterRow to filter empty rows
FilterRow = rowReader =>
{
    var hasData = false;
    for (var i = 0; i < rowReader.FieldCount; i++)
    {
        if (rowReader[i] == null || string.IsNullOrEmpty(rowReader[i].ToString()))
        {
            continue;
        }

        hasData = true;
        break;
    }

    return hasData;
},
// use ExcelDataTableConfiguration.FilterColumn to filter empty columns
FilterColumn = (rowReader, colIndex) =>
{
    var hasData = false;
    rowReader.Reset();

    // this will skip first row as it is name of column
    rowReader.Read();

    while (rowReader.Read())
    {
        if (rowReader[colIndex] == null || 
            string.IsNullOrEmpty(rowReader[colIndex].ToString()))
        {
            continue;
        }

        hasData = true;
        break;
    }

    // below codes do a trick!
    rowReader.Reset();
    rowReader.Read();

    return hasData;
}

Using IExcelDataReader arguments inside FilterRow or FilterColumn is evil!
I think in main reader and each rowReader are referenced to one object! so you should always aware of how to use them, as you can see I add a trick to make reader to be ready after using it. - HTH ;)