Developer Tools — Guides & Articles

• How to Make Flexbox Horizontal

  Published 2026-09-21

  Setting flex-direction to row makes items flow horizontally. Use justify-content and a 0–100px gap in the Flexbox Generator.

  

• Bulk File Signatures Reference: Twelve Verified Prefix Bytes

  Published 2026-09-21

  Search twelve source-checked file signatures by format, extension, or hex prefix. Compare offset-zero bytes in a viewer and copy them for detection rules.

  

• How to Open Excel Online in a Desktop App Without Excel

  Published 2026-09-21

  Open an Excel .xlsx workbook locally in a desktop-style viewer without uploading it, signing in, or running spreadsheet formulas. No Excel install required.

  

• How to Convert Excel to JSON Outside the GST Offline Tool

  Published 2026-09-21

  Convert Excel to JSON in your browser for GST filing prep without installing the GST Offline Tool. Local .xlsx export, no upload, with safe size and cell…

  

• Build HTML Tables From Excel for Power Automate

  Published 2026-09-20

  Turn a local .xlsx worksheet into an escaped HTML table snippet for Power Automate flows — review, copy, and paste into email or webhook actions.

  

• How to Export a Table in Excel to CSV Without Breaking It

  Published 2026-09-20

  Exporting an Excel table to CSV is simple once you know what gets lost. Follow this privacy-first workflow to convert one worksheet locally and verify the…

  

• Get a Directory Tree in Linux Without the tree Command

  Published 2026-09-20

  Get a Linux directory tree without running the tree command. Paste relative paths, choose Unicode or ASCII connectors, and copy a deterministic tree for docs.

  

• How to Transpose in Excel With a Keyboard Shortcut

  Published 2026-09-20

  Excel has no single transpose shortcut. The Windows path is Ctrl+C, Ctrl+Alt+V, Alt+E+S+E, Enter. macOS swaps modifiers and the web uses the ribbon.

  

• How to Find Every Excel Hyperlink Before Removing It

  Published 2026-09-20

  Before you remove Excel hyperlinks, you need a plain-text inventory of every cell link. The Excel Hyperlink Extractor lists them locally — no upload, no follow.

  

• Excel Formulas Cheat Sheet: Command Line vs Online

  Published 2026-09-20

  Compare command-line and online ways to look up Excel formulas. See how a browser-based cheat sheet covers twelve everyday functions with syntax and examples.