xls2txt

command line tool to convert excel xls files to csv

36
14
C

XLS2TXT

Converting Excel to Text, Simplifying Complexity

license last-commit repo-top-language repo-language-count


Table of Contents


Overview

xls2txt is a powerful tool that converts Microsoft Excel files to plain text formats, enabling seamless data exchange between systems. With its modular architecture and open-source principles, it streamlines data conversion and export, making it an essential component for various applications, from file management to numerical computations.


Features

Feature Summary
βš™οΈ Architecture
  • Modular design with multiple components working together to achieve a common goal.
  • Scalable architecture, as indicated by the project’s structure and use of virtual memory mapping.
  • Unified interface for mapping and unmapping memory regions through ummap.h.
πŸ”© Code Quality
  • High-quality code with proper error handling mechanisms, such as those defined in myerr.h.
  • Efficient numerical computations using IEEE 754 double precision floating point numbers conversion in ieee754.c.
  • Robust framework for managing complex data structures through the dynamic linked list implementation in list.h.
πŸ“„ Documentation
  • Primary language is C, with a focus on documentation and transparency, as indicated by open-source licenses and references to external documentation.
  • Clear explanations of error handling mechanisms and code functionality through comments and documentation files.
  • Use of standard formats for data exchange, such as the Excel file format referenced in sc.openoffice.org/excelfileformat.pdf.
πŸ”Œ Integrations
  • Integration with other components, such as debug logs and character encoding conversions, to facilitate data-driven decision-making and improve overall system reliability.
  • Use of virtual memory mapping to enable on-demand computation instead of preparation at start-up.
  • Connection to the Excel file format through xls2txt.c, which reads and interprets Excel file structures and converts relevant data to plain text format.
πŸ€– Artificial Intelligence
  • No explicit use of AI or machine learning algorithms in the provided codebase, but the project’s focus on data conversion and exchange may involve AI-powered tools in the broader context.
  • No references to AI-related libraries or frameworks in the codebase.
πŸ“ˆ Performance
  • Efficient numerical computations using IEEE 754 double precision floating point numbers conversion in ieee754.c.
  • Robust framework for managing complex data structures through the dynamic linked list implementation in list.h.
  • Use of virtual memory mapping to enable on-demand computation instead of preparation at start-up.

Project Structure

└── xls2txt/
    β”œβ”€β”€ Makefile
    β”œβ”€β”€ Workbook1.xls
    β”œβ”€β”€ cp.c
    β”œβ”€β”€ dbg
    β”œβ”€β”€ ieee754.c
    β”œβ”€β”€ list.h
    β”œβ”€β”€ myerr.h
    β”œβ”€β”€ ole.c
    β”œβ”€β”€ ummap.c
    β”œβ”€β”€ ummap.h
    β”œβ”€β”€ xls2txt.c
    └── xls2txt.h

Project Index

XLS2TXT/
__root__


























xls2txt.h - Analyzes the xls2txt.h file, revealing its purpose as a foundational component of the project's overall architecture
- It provides essential data types and macros to facilitate memory management, data conversion, and string manipulation within the codebase
- The file serves as a crucial bridge between low-level system interactions and higher-level application logic, enabling efficient processing of various data formats and character encodings.
ummap.c - The ummap.c file enables the use of virtual memory mapping arbitrary data to memory, allowing on-demand computation instead of preparation at start-up
- It provides a mechanism for managing mapped pages and handling segmentation faults and bus errors
- The code achieves efficient memory management and error handling, making it an essential component of the project's overall architecture.
dbg - Analyzes debug logs to identify recurring issues
- The dbg file provides a centralized location for logging critical errors and exceptions, enabling the team to track patterns and optimize the codebase architecture
- By integrating with other components, it facilitates data-driven decision-making and improves overall system reliability
- It plays a crucial role in ensuring the project's stability and performance.
Makefile - The Makefile serves as the backbone of the project's build process, orchestrating the compilation and installation of various components
- It ensures that the executable is built from source files, installed in a designated directory, and cleaned up upon request
- The file also facilitates distribution and verification of the software package
- Overall, it streamlines the development workflow, enabling efficient management of dependencies and output.
ummap.h - Map the entire project structure to understand its purpose.

The ummap.h file serves as a core component of the project’s memory management system, providing a unified interface for mapping and unmapping memory regions
- It enables efficient access control and tracking of mapped pages, facilitating secure memory allocation and deallocation within the system.

xls2txt.c - Summary

The xls2txt.c file is a critical component of the project’s overall architecture
- It serves as a bridge between Microsoft Excel files and plain text formats, enabling data conversion and export.

In essence, this code achieves the following:

  • Reads and interprets Excel file structures
  • Converts relevant data to plain text format
  • Generates human-readable output

By integrating with other components of the project, xls2txt.c plays a vital role in facilitating data exchange between different systems
- Its functionality is crucial for the overall success of the project, which aims to provide a robust and efficient solution for converting Excel files to various formats.

Additional Context

The project’s structure suggests that it is designed to be modular and scalable, with multiple components working together to achieve a common goal
- The inclusion of open-source licenses and references to external documentation (e.g., sc.openoffice.org/excelfileformat.pdf) indicates a commitment to transparency and community involvement.

Overall, the xls2txt.c file is a key component of the project’s architecture, enabling data conversion and export while adhering to open-source principles.

ieee754.c - Converts IEEE 754 double precision floating point numbers to a standard format
- Achieves this by handling various edge cases such as denormalized and infinity values, while also considering different architectures (x86 and others)
- The function is designed to be portable and efficient, allowing it to be used throughout the codebase for accurate numerical computations.
myerr.h - Document the error handling mechanism in the project’s core functionality
- The provided myerr.h file defines three macros to handle errors and warnings in a centralized manner
- These macros, err, errx, and warnx, ensure that error messages are printed to stderr along with the corresponding system error code, facilitating easier debugging and error reporting within the xls2txt application.
cp.c - The provided C code snippet appears to be part of a larger program that handles character encoding conversions
- The set_codepage function sets the current code page based on the input value, and the print_cp_str function prints a string using the specified code page
- However, the cp1200 array is not initialized, which may cause issues when used.
ole.c - The get_workbook function retrieves the workbook data from the file
- It first checks if a map is already available and returns its address if so
- If not, it maps a new ummap structure to the file using um_map
- The str_get_page function is used as the handler for the mapped pages.
list.h - The provided list.h file serves as the foundation for a dynamic linked list data structure, enabling efficient insertion, deletion, and manipulation of nodes within the list
- It facilitates operations such as adding items to the end or beginning of the list, removing specific elements, and checking for emptiness
- The code provides a robust framework for managing complex data structures in various applications.



Getting Started

Prerequisites

Before getting started with xls2txt, ensure your runtime environment meets the following requirements:

  • Programming Language: C

Installation

Install xls2txt using one of the following methods:

Build from source:

  1. Clone the xls2txt repository:
❯ git clone https://github.com/hroptatyr/xls2txt
  1. Navigate to the project directory:
❯ cd xls2txt
  1. Install the project dependencies:

echo β€˜INSERT-INSTALL-COMMAND-HERE’

Usage

Run xls2txt using the following command:
echo β€˜INSERT-RUN-COMMAND-HERE’

Testing

Run the test suite using the following command:
echo β€˜INSERT-TEST-COMMAND-HERE’


Contributing

Contributing Guidelines
  1. Fork the Repository: Start by forking the project repository to your github account.
  2. Clone Locally: Clone the forked repository to your local machine using a git client.
    git clone https://github.com/hroptatyr/xls2txt
    
  3. Create a New Branch: Always work on a new branch, giving it a descriptive name.
    git checkout -b new-feature-x
    
  4. Make Your Changes: Develop and test your changes locally.
  5. Commit Your Changes: Commit with a clear message describing your updates.
    git commit -m 'Implemented new feature x.'
    
  6. Push to github: Push the changes to your forked repository.
    git push origin new-feature-x
    
  7. Submit a Pull Request: Create a PR against the original project repository. Clearly describe the changes and their motivations.
  8. Review: Once your PR is reviewed and approved, it will be merged into the main branch. Congratulations on your contribution!
Contributor Graph


License

This project is protected under the SELECT-A-LICENSE License. For more details, refer to the LICENSE file.


Acknowledgments

  • List any resources, contributors, inspiration, etc. here.