Convert EPUB to XLSX

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EPUB vs XLSX Format Comparison

Aspect EPUB (Source Format) XLSX (Target Format)
Format Overview
EPUB
Electronic Publication

Open e-book standard developed by IDPF (now W3C) for digital publications. Based on XHTML, CSS, and XML packaged in a ZIP container. Supports reflowable content, fixed layouts, multimedia, and accessibility features. The dominant open format for e-books worldwide.

E-book Standard Reflowable
XLSX
Excel Spreadsheet

Microsoft Excel's modern spreadsheet format based on Office Open XML standard. Stores data in cells organized into worksheets. Supports formulas, charts, pivot tables, formatting, and macros. The industry standard for spreadsheets and data analysis.

Spreadsheet Data Analysis
Technical Specifications
Structure: ZIP archive with XHTML/XML
Encoding: UTF-8 (Unicode)
Format: OEBPS container with manifest
Compression: ZIP compression
Extensions: .epub
Structure: ZIP archive with XML
Encoding: UTF-8 (Unicode)
Format: Office Open XML (OOXML)
Compression: ZIP compression
Extensions: .xlsx
Syntax Examples

EPUB contains XHTML content:

<?xml version="1.0"?>
<html xmlns="...">
<head><title>Chapter 1</title></head>
<body>
  <h1>Introduction</h1>
  <p>Content here...</p>
</body>
</html>

XLSX contains structured cells:

+----------+----------+----------+
| Column A | Column B | Column C |
+----------+----------+----------+
| Data 1   | Data 2   | Data 3   |
| Data 4   | Data 5   | Data 6   |
+----------+----------+----------+

Formulas: =SUM(A1:A10)
Charts, pivot tables, formatting
Content Support
  • Rich text formatting and styles
  • Embedded images (JPEG, PNG, SVG, GIF)
  • CSS styling for layout
  • Table of contents (NCX/Nav)
  • Metadata (title, author, ISBN)
  • Audio and video (EPUB3)
  • JavaScript interactivity (EPUB3)
  • MathML formulas
  • Accessibility features (ARIA)
  • Cells with text, numbers, dates
  • Formulas and calculations
  • Multiple worksheets
  • Charts and graphs
  • Pivot tables
  • Cell formatting and styles
  • Conditional formatting
  • Data validation
  • Macros (VBA)
Advantages
  • Industry standard for e-books
  • Reflowable content adapts to screens
  • Rich multimedia support (EPUB3)
  • DRM support for publishers
  • Works on all major e-readers
  • Accessibility compliant
  • Powerful data analysis capabilities
  • Industry standard for spreadsheets
  • Formulas and calculations
  • Charts and visualizations
  • Works with Excel, LibreOffice, Google Sheets
  • Large dataset support
  • Pivot tables for data summarization
Disadvantages
  • Complex XML structure
  • Not human-readable directly
  • Requires special software to edit
  • Binary format (ZIP archive)
  • Not suitable for version control
  • Not designed for narrative text
  • Requires spreadsheet software
  • Can become very large
  • Version control challenges
  • Proprietary Microsoft format originally
Common Uses
  • Digital book distribution
  • E-reader devices (Kobo, Nook)
  • Apple Books publishing
  • Library digital lending
  • Self-publishing platforms
  • Financial analysis and budgets
  • Data analysis and reporting
  • Inventory management
  • Sales tracking
  • Statistical analysis
  • Project planning
  • Scientific data
Best For
  • E-book distribution
  • Digital publishing
  • Reading on devices
  • Commercial book sales
  • Structured data storage
  • Financial calculations
  • Data analysis
  • Tabular information
Version History
Introduced: 2007 (IDPF)
Current Version: EPUB 3.3 (2023)
Status: Active W3C standard
Evolution: EPUB 2 → EPUB 3 → 3.3
Introduced: 2007 (Microsoft Office 2007)
Current Version: Office Open XML (ISO 29500)
Status: Active ISO standard
Evolution: XLS (binary) → XLSX (Open XML)
Software Support
Readers: Calibre, Apple Books, Kobo, Adobe DE
Editors: Sigil, Calibre, Vellum
Converters: Calibre, Pandoc
Other: All major e-readers
Editors: Excel, LibreOffice Calc, Google Sheets
Viewers: Excel Viewer, Numbers (Mac)
Libraries: openpyxl, xlrd, pandas (Python)
Other: Most data analysis tools

Why Convert EPUB to XLSX?

Converting EPUB e-books to Excel (XLSX) format is valuable when you need to extract structured data, tables, or lists from e-books for analysis, reporting, or data processing. While EPUB is designed for reading narrative content, Excel excels at organizing, analyzing, and manipulating tabular data.

This conversion is particularly useful for textbooks, reference books, or technical manuals that contain tables, data sets, glossaries, or structured lists. By converting to XLSX, you can extract this information into a spreadsheet where it can be sorted, filtered, searched, and analyzed using Excel's powerful tools.

For researchers and analysts, converting EPUB to Excel enables data extraction from published research, statistical reports, or data-heavy publications. Tables from the e-book become Excel worksheets where you can perform calculations, create charts, build pivot tables, or export data to other analysis tools.

The conversion process extracts text content and any tables from the EPUB, organizing them into Excel cells and worksheets. Each chapter might become a separate worksheet, or tables might be extracted individually. While narrative text won't be as naturally formatted in a spreadsheet, any structured data becomes readily accessible for spreadsheet operations.

Key Benefits of Converting EPUB to Excel:

  • Data Extraction: Pull tables and structured data from e-books
  • Analysis Tools: Use formulas, pivot tables, and charts
  • Sorting & Filtering: Organize extracted data efficiently
  • Export Options: Convert to CSV, import into databases
  • Calculations: Perform calculations on numeric data
  • Visualization: Create charts and graphs from data
  • Universal Compatibility: Works with Excel, Google Sheets, LibreOffice

Practical Examples

Example 1: Table Extraction

Input EPUB with table:

<table>
  <thead>
    <tr><th>Product</th><th>Price</th><th>Quantity</th></tr>
  </thead>
  <tbody>
    <tr><td>Laptop</td><td>$999</td><td>5</td></tr>
    <tr><td>Mouse</td><td>$25</td><td>20</td></tr>
    <tr><td>Keyboard</td><td>$75</td><td>10</td></tr>
  </tbody>
</table>

Output Excel spreadsheet structure:

Worksheet: "Table 1"
+----------+-------+----------+
| Product  | Price | Quantity |
+----------+-------+----------+
| Laptop   | 999   | 5        |
| Mouse    | 25    | 20       |
| Keyboard | 75    | 10       |
+----------+-------+----------+

Can now use Excel formulas:
Total Value = Price * Quantity
Sum, Average, etc.

Example 2: Chapter Data Organization

Input EPUB chapters:

Chapter 1: Introduction
Chapter 2: Methods
Chapter 3: Results (contains data table)
Chapter 4: Conclusion

Output Excel workbook:

Workbook.xlsx
├── Sheet1: Chapter 1 - Introduction
├── Sheet2: Chapter 2 - Methods
├── Sheet3: Chapter 3 - Results (table data)
└── Sheet4: Chapter 4 - Conclusion

Each worksheet contains the chapter's text
and any tables in structured cells

Example 3: List to Spreadsheet

Input EPUB with lists:

<h2>Programming Languages</h2>
<ul>
  <li>Python - Easy to learn</li>
  <li>JavaScript - Web development</li>
  <li>Java - Enterprise applications</li>
  <li>C++ - System programming</li>
</ul>

Output Excel data:

+--------------+-------------------------+
| Language     | Description             |
+--------------+-------------------------+
| Python       | Easy to learn           |
| JavaScript   | Web development         |
| Java         | Enterprise applications |
| C++          | System programming      |
+--------------+-------------------------+

Can now sort, filter, or analyze

Frequently Asked Questions (FAQ)

Q: What is XLSX format?

A: XLSX is Microsoft Excel's modern spreadsheet format based on Office Open XML standard. It stores data in rows and columns (cells), supports formulas, charts, formatting, and multiple worksheets. XLSX files are ZIP archives containing XML files, similar to EPUB structure but designed for tabular data.

Q: Will the conversion preserve book formatting?

A: No. Spreadsheets are designed for tabular data, not narrative text. The conversion extracts content into cells and worksheets, but won't preserve the e-book's visual layout. This conversion is best for extracting structured data (tables, lists) rather than preserving the book's appearance.

Q: How are chapters organized in the Excel file?

A: Typically, each chapter becomes a separate worksheet in the Excel workbook. Chapter titles become worksheet names, and content is placed in cells. If there are many chapters, they might be organized differently depending on the converter's approach.

Q: What happens to images in the EPUB?

A: Excel can embed images, so some converters may include images from the EPUB as embedded pictures in the spreadsheet. However, images significantly increase file size and may not be included by default. Check the resulting file to see if images were preserved.

Q: Can I edit the data and convert back to EPUB?

A: While technically possible, it's not recommended. Excel is for data analysis, not book authoring. Changes made in Excel won't easily convert back into a well-formatted e-book. If you need to edit book content, use proper e-book editing tools like Sigil or Calibre.

Q: Is this useful for novels and fiction books?

A: Not really. Fiction books are narrative text best read as books. Converting to Excel makes sense only for books with significant structured data: textbooks with tables, reference books with lists, technical manuals with specifications, or research publications with data sets.

Q: What can I do with the Excel file after conversion?

A: You can: (1) Extract and analyze tables from the e-book, (2) Sort and filter data, (3) Perform calculations on numeric data, (4) Create charts and visualizations, (5) Export specific data to CSV or other formats, (6) Import into databases, or (7) Combine data from multiple e-books for comparative analysis.

Q: Will formulas work in the converted file?

A: The EPUB itself doesn't contain Excel formulas. After conversion, you have the raw data in cells. You can then add your own formulas to calculate, analyze, or summarize that data. The conversion provides the data; you add the analysis capabilities.