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Universal Spreadsheet & Markdown Editor (XLSX, CSV, TSV)

Universal Spreadsheet & Markdown Editor (XLSX, CSV, TSV)

Vallarasu Kanthasamy

|
22 installs
| (0) | Free
Unified spreadsheet and markdown editor for XLSX, CSV, TSV, and Markdown files with premium design and Google Sheets-style editing.
Installation
Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.
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Universal File Editor (XLSX, CSV, Markdown, JSON, XML, YAML)

Overview Banner

Transform VS Code into a powerful, unified workspace for viewing and editing any file format with a premium, glassmorphism-styled interface.

🚀 Key Features

📊 Unified Spreadsheet & Structured Data Editor

Supports XLSX, CSV, TSV, JSON, JSONL, XML, and YAML with a single, high-performance editing pipeline.

  • Google Sheets-style Experience: Intuitive grid editing with support for complex data structures.
  • Native Undo/Redo (Ctrl+Z): Full integration with VS Code's native undo stack.
  • Large File Virtualization: Smoothly handle massive datasets with 100k+ rows.
  • Auto-Serialization: Automatically saves changes back to the source format (e.g., converts grid edits back to valid XML or YAML).

📝 Interactive Markdown Editor

  • Visual Preview Editing: Edit your Markdown directly in the preview window with contenteditable support.
  • Bi-directional Sync: Changes in the preview are instantly converted back to Markdown source.
  • KaTex & Math support: Render complex mathematical formulas beautifully.

🖼️ Universal Media Viewer

  • High-Fidelity Previews: Support for .svg, .png, .jpg, .jpeg, .gif, .webp, .bmp, and .ico.
  • Integrated View: Media files open directly in a clean, focused viewer.

💎 Premium Text Fallback

  • Glassmorphism Design: A stunning, translucent interface for all other file types (.txt, .log, .conf, .env, etc.).
  • Enhanced Readability: Optimized typography and spacing for developer logs and configuration files.

🔄 Architecture & Flow Diagram

Here is a high-level overview of how the Universal File Editor processes files seamlessly within VS Code:

flowchart TD
    A[User Opens File] --> B{"Check URI & Path (Bypass Logic)"}
    B -- Bypass matched (e.g. .git, gitlens) --> C[Open with Default VS Code Editor]
    B -- No bypass --> D{"File Extension/Type"}
    
    D -- Data Files (.xlsx, .csv, .json, .xml, .yaml) --> E[Spreadsheet Editor]
    D -- Markdown (.md) --> F[Markdown Editor]
    D -- Media (.png, .jpg, .svg) --> G[Media Viewer]
    D -- Other Text Files --> H[Premium Text Viewer]
    
    E --> I[Parse Data into Generic Array/Grid]
    F --> J[Parse Markdown to HTML/KaTeX]
    
    I --> K[Render Interactive Glassmorphism Webview]
    J --> K
    
    K <--> L[User Edits Data]
    L --> M[Auto-Serialize Back to Original Format]
    M --> N[Save File via VS Code Workspace Edit]

🛠️ Usage

This extension is set as the default editor for all supported formats. Simply click a file in the explorer to open it in the Universal Editor.

  • To use the standard text editor, right-click and select "Open With -> Text Editor".

⚙️ Customization & Git/Folder Bypassing

By default, the custom editors will automatically bypass Git-related tracking files/schemes (like git://, gitlens://, vscode-local-history:// etc.) and files inside .git or node_modules folders, reverting to VS Code's standard text editor so that source control tracking and diff comparison views work perfectly.

You can customize this behavior in VS Code settings:

  • xlsxViewer.disableTextViewer (default: false): Set to true to completely disable the Premium Text Viewer custom editor (so that all standard text/log files open in the native text editor).
  • xlsxViewer.excludeSchemes (default: ["git", "gitlens", "gitlens-git", "gitfs", "vscode-local-history", "pr", "review"]): Excludes specific URI schemes from opening in custom editors.
  • xlsxViewer.excludePaths (default: ["**/.git/**", "**/node_modules/**"]): Glob patterns/path substrings to exclude.

💖 Support the Developer

If you find this extension helpful and it saves you time, please consider supporting its development!

  • UPI ID: vallarasuk143@pingpay

Support QR Code

Thank you for your support!

🛠️ Recent Fixes (v1.0.9)

  • Fix Webview Loading Issues: Resolved a perpetual "loading" state when opening Markdown and Spreadsheet editors by correcting the VS Code API instantiation.
  • Improved Error Logging: Error diagnostics are now forwarded from the webview context to VS Code notification windows.

📜 License

MIT

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