read_excel with xlsb

```python
df = pd.read_excel()

```
As it been said in the new docs that read_excel can now read xlsb, I tried to run my xlsb file and still got and error.
```
Supports xls, xlsx, xlsm, xlsb, and odf file extensions read from a local filesystem or URL. Supports an option to read a single sheet or a list of sheets.

```
#### Expected Output
A working df.

#### Output of ``pd.show_versions()``

<details>

INSTALLED VERSIONS
------------------
commit           : None
python           : 3.6.9.final.0
python-bits      : 64
OS               : Linux
OS-release       : 4.14.137+
machine          : x86_64
processor        : x86_64
byteorder        : little
LC_ALL           : None
LANG             : en_US.UTF-8
LOCALE           : en_US.UTF-8

pandas           : 1.0.1
numpy            : 1.17.5
pytz             : 2018.9
dateutil         : 2.6.1
pip              : 19.3.1
setuptools       : 45.1.0
Cython           : 0.29.15
pytest           : 3.6.4
hypothesis       : None
sphinx           : 1.8.5
blosc            : None
feather          : 0.4.0
xlsxwriter       : None
lxml.etree       : 4.2.6
html5lib         : 1.0.1
pymysql          : None
psycopg2         : 2.7.6.1 (dt dec pq3 ext lo64)
jinja2           : 2.11.1
IPython          : 5.5.0
pandas_datareader: None
bs4              : 4.6.3
bottleneck       : 1.3.1
fastparquet      : None
gcsfs            : None
lxml.etree       : 4.2.6
matplotlib       : 3.1.3
numexpr          : 2.7.1
odfpy            : None
openpyxl         : 2.5.9
pandas_gbq       : 0.11.0
pyarrow          : 0.14.1
pytables         : None
pytest           : 3.6.4
pyxlsb           : None
s3fs             : 0.4.0
scipy            : 1.4.1
sqlalchemy       : 1.3.13
tables           : 3.4.4
tabulate         : 0.8.6
xarray           : 0.14.1
xlrd             : 1.1.0
xlwt             : 1.3.0
xlsxwriter       : None
numba            : 0.47.0

</details>

![xlsb](https://user-images.githubusercontent.com/44175527/75250433-074d8380-57e1-11ea-8df1-b1108eea48a4.png)
