read_excel function not reading the whole data in a cell if it has more than 45 charecters.
#### Code Sample, a copy-pastable example if possible

```python
# Your code here
import pandas as pd
df =pd.read_excel('Financial Sample1.xlsx')
print (df)
```
#### Problem description
I have already posted my issue before. The read_excel function is not able to read the excel sheet is only reading a part of the cells which has more than 45 characters in it. for example if the excel cell has the data : " this is github and i am posting an issue here about pandas so i want the solution" then it reads as follows: "his is github and i am posting an issue here about pandas . . . ". so the data in the cells which has lot of characters is getting trimmed.
[sample.xlsx](https://github.com/pandas-dev/pandas/files/2107655/sample.xlsx).

I am attaching the excel file which i used for extracting data in which many cells have data more than 45 characters. 

[this should explain **why** the current behaviour is a problem and why the expected output is a better solution.]

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#### Expected Output

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

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[paste the output of ``pd.show_versions()`` here below this line]

</details>
