Reading Excel files with read_excel in Pandas - Cheat Sheet & Quick Revision

Recall & Review

beginner

What function in pandas is used to read Excel files?

The function read_excel() is used to read Excel files into a pandas DataFrame.

beginner

How do you specify which sheet to read from an Excel file using read_excel()?

Use the sheet_name parameter to specify the sheet name or index. For example, sheet_name='Sheet1' or sheet_name=0.

beginner

What type of object does read_excel() return?

read_excel() returns a pandas DataFrame, which is a table-like data structure.

intermediate

How can you read multiple sheets at once using read_excel()?

Set sheet_name=None to read all sheets. It returns a dictionary with sheet names as keys and DataFrames as values.

intermediate

What parameter would you use to skip rows at the start of an Excel sheet when reading it?

Use the skiprows parameter to skip a number of rows at the start. For example, skiprows=2 skips the first two rows.

Which pandas function reads an Excel file into a DataFrame?

A read_json()

B read_csv()

C read_excel()

D read_table()

read_excel() is the correct function to read Excel files.

How do you read the second sheet of an Excel file using read_excel()?

A sheet_name=1

B sheet_name='second'

C sheet=2

D sheet='Sheet2'

Sheets are zero-indexed, so sheet_name=1 reads the second sheet.

What does read_excel() return when sheet_name=None?

A A NumPy array

B A list of DataFrames

C A single DataFrame

D A dictionary of DataFrames

It returns a dictionary with sheet names as keys and DataFrames as values.

Which parameter skips rows at the start of the sheet when reading Excel?

A header

B skiprows

C skipfooter

D index_col

skiprows skips rows at the beginning of the sheet.

If you want to read only columns A and C from an Excel sheet, which parameter helps?

A usecols='A,C'

B columns=['A','C']

C cols='A,C'

D select_cols='A,C'

The usecols parameter selects specific columns by name or letter.

Explain how to read an Excel file with multiple sheets using pandas.

Think about how to get all sheets at once.

Describe how to skip the first 3 rows and read only specific columns from an Excel sheet.

Focus on parameters that control rows and columns.