Replaces Word, Excel and PowerPoint
IronIngot
Opens the .xlsx you were sent, and saves one back.
A spreadsheet, a word processor and a presentation editor sharing one document engine, on the desktop and in the browser. They read and write the real Office formats rather than converting to something else and hoping.
All three editors open, edit, create and save real Office files, and are in use inside IronDrive. Packaging for Windows and macOS is written but has not been tested on those machines yet.
- Formats
- Reads and writes .xlsx, .docx and .pptx
- Spreadsheet
- 134 functions, ordered recalculation, 10 chart types
- Export
- PDF, rendered from what is on screen
- Platforms
- Linux packaged and proven, web via WebAssembly
- In the browser
- Edits documents stored in IronDrive, in place
- Tested against
- Real Office output, not a specification alone
Your existing files stay intact
Parts of a file the editors do not yet understand — pivot caches, themes, custom styles — are preserved byte for byte and written back on save. Opening a document in IronIngot does not quietly strip what it cannot display.
The PDF matches the screen
Export draws from the same display list the editor renders, so the exported document is what you were looking at, not a second implementation that drifts.
Recalculation in the right order
The spreadsheet works out which cells depend on which and recalculates along that graph, so a chain of formulas settles correctly in one pass.
Copy and paste works with Excel
Data copied out lands in Excel as data, and data copied in from Excel arrives as cells rather than a block of text.
One engine, two faces
The desktop applications and the browser version share the same core, so a file behaves the same in both rather than the web version being a limited preview.
It exists to remove a per-seat fee
IronIngot was built so IronDrive could stop paying a per-user licence to a third party for in-browser editing. That cost saving is the whole reason it is worth writing.


Listed so you can decide with the whole picture rather than discover it after signing.
- Packaging tested on real Windows and macOS machines
- Creating pivot tables, which are currently preserved but not authored
- Two people editing the same document at once
- OpenDocument formats