R is known for its complex modelling capabilities among statisticians and data scientists. However, in corporate environments MS Excel is the primary tool used which needs to be integrated into many data science workflows. Most often, Excel files need to be used as a data source or as a reporting tool. In this tutorial you will learn about the most important R packages to read, create and style Excel files so that you can seamlessly integrate them into end-to-end data science workflows.

R/Excel Introduction

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Introduction

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Excel Pros and Cons

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Excel vs. R Summary

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Quiz: R Pros vs. Excel

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Quiz: Excel Cons vs. R

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Using R as a companion to Excel

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Quiz: R and Excel Workflows

Overview of ways to read and create Excel files using R including readxl, writexl, openxlsx, RODBC, ...

Read Excel Files using readxl

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Load Excel Files as Data Frames

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The read_excel() Function

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Exercise: Read an Excel File

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Spreadsheet Shape

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Quiz: Default Settings of read_excel()

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Data Types

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Optional Argument: skip

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Optional Argument: col_names

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Handle Excel Files with Multiple Sheets

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Inspect the Available Excel Sheets

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Exercise: Inspect the Available Excel Sheets

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Read a Specific Sheet

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Exercise: Read a Specific Sheet

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Read All Sheets Using sapply()

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Exercise: Read All Sheets from an Excel File

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Read a Specific Range from an Excel Sheet

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Define a Range Selection

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Use Range Selector Functions

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Read Excel files using readxl and learn how to deal with workbooks containing multiple spreadsheets.

Write Excel Files using writexl

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Save Data Frames as Excel Files

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The write_xlsx() Function

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Exercise: write_xlsx()

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Exercise: col_names

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Write Multiple Data Frames to an Excel File

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Export a Workbook from a List of Data Frames

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Exercise: Export a List of Data Frames

Write data to Excel quickly using writexl. Create files with a single sheet or workbooks with multiple sheets.

Create Customized Excel Files using openxlsx

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Read and Write Excel Files

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The read.xlsx() Function

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Exercise: Read Excel Tables

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The write.xlsx() Function

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Quiz: The write.xlsx() Function

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Save Data Frames as Excel Tables

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Exercise: Write Excel Tables

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Create Excel Files from Scratch

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Create and Save a Workbook

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Exercise: Create and Save a Workbook

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Add Worksheets to a Workbook

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Exercise: Add Worksheets to a Workbook

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Insert Data into Worksheets

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Exercise: Insert Data into Worksheets

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Load Excel Files as Workbooks

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Exercise: Load Excel Files as Workbooks

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Specify Column Formatting

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Define Column Classes

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Exercise: Define Column Classes

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Date Formatting Options

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Exercise: Date Formatting Options

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Column Formatting with openxlsx Workbooks

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Exercise: Column Formatting with openxlsx Workbooks

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Create Custom Styling

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Define Styling Objects

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Exercise: Styling Objects

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Header Styling

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Exercise: Header Styling

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Cell Specific Styling of Worksheets

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Exercise: Cell Styling

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Combining Cell Formatting and Styling

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Exercise: Style Stacking

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Add Images to Worksheets

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Insert Image Files

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Quiz: Insert Image Files

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Exercise: Insert Image Files

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Insert Plots

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Excercise: Insert Plots

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Define Excel Formulas

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Assign a Formula to a Cell

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Exercise: Insert Formula

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Assign Formulas to Multiple Cells

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Quiz: Insert Multiple Formulas

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Assign the Formula Class to a Column

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Exercise: Formula Columns

Read and write Excel files using openxlsx. Define the formatting of the columns, and create custom styling for the sheets.