When using use_columns it still reads other columns

[deanm0000]

See here

Suppose we have an excel file that looks like this:

then run

from fastexcel import read_excel
read_excel(file_path).load_sheet(0, use_columns=["apple","banana"])

it raises with:

CalamineCellError: calamine cell error: #DIV/0!
Context:
    0: could not determine dtype for column blah

It should just ignore that column since it isn't in the use_columns list.

The work around is to tell it to make the other column a string

read_excel(file_path).load_sheet(0, use_columns=["apple","banana"], dtypes={"blah":"string"})