Editor compatibility · Updated 22 September 2026
Know what your files can do here
Dynodoc puts version control at the center of document and spreadsheet work. This is the current compatibility guide, not a claim of complete Microsoft Office parity.
Documents
| Area | Current support |
|---|---|
| Writing & formatting | Headings 1–6, font family and size, colors, highlighting, emphasis, lists, links, alignment, paragraph spacing, indentation and equations. |
| Pages | A4, Letter and Legal; portrait or landscape; margins, plain-text headers/footers, page numbers and explicit page breaks. Editable pages reflow as you type, with a continuous-view option and a separate print/PDF preview. |
| Tables | Insert, resize columns, add/remove rows and columns, header rows and merged cells. Complex floating tables and exact Word layout need review. |
| Review | Track text insertions/deletions inside existing paragraphs and accept/reject them. Comments, personal drafts, suggestions and version history. Formatting revisions and structural edits use version history rather than Word-style redlines. |
| Languages & input | Unicode text, automatic/LTR/RTL direction, document language and composition-aware input. Font availability and platform-specific IMEs still require testing with your workflow. |
| Fonts | System font selection and shared WOFF2, WOFF, TTF or OTF uploads, up to 2 MB each and 16 families per document. Font names export to Word; font files are not embedded in DOCX or public copies. |
| Accessibility | Keyboard ribbon navigation, labelled controls, document language, image descriptions and basic heading/table/link checks. Automated checks do not establish full screen-reader or WCAG conformance. |
| DOCX exchange | Native style inheritance, common run formatting, paragraph direction, lists, table spans, supported embedded images, text revisions and imported comments. Original files and conversion notes are retained. |
| References | Editable footnote/endnote text, note navigation, and a heading-based table of contents with manual refresh. DOCX uses native note references and a TOC field. Browser note bodies appear in a panel and at the end of print output; per-page footnote placement and rich note formatting remain incomplete. |
| Advanced Word features | Floating layouts, native equation round trips, mail merge, citations, full section layout, tracked moves and formatting revisions remain incomplete. |
Spreadsheets
| Area | Current support |
|---|---|
| Editing & calculation | Multiple sheets, formula bar, keyboard ranges, sort/filter, find/replace, summaries and relative formula fill. The calculation engine implements a documented formula subset. |
| Layout & formatting | Fonts, emphasis, colors, common number formats, borders, wrapping, merged ranges, frozen panes, widths/heights and hidden rows/columns. |
| Conditional formatting | Numeric greater-than, less-than, equality and between rules, including calculated values, with XLSX import and export. Formula rules, color scales, data bars and icon sets remain incomplete. |
| Validation | Inline lists, whole/decimal number and text-length constraints. Other imported validation expressions are retained for Excel but are not fully evaluated here. |
| XLSX exchange | Values and formulas, numeric/date/text types, common formatting, notes, validation metadata, merged ranges, widths/heights, freeze settings, named ranges, supported charts and print settings. XLSX conversion runs in a cancellable browser worker. |
| Analysis | Column, bar, line and pie charts with live data, movable/resizable charts, and rectangular same-sheet native XLSX chart exchange. Pivot summaries support row/column groups, sum/count/average/min/max and explicit refresh; XLSX exports the results as cells. Workbook names, relative-formula sorting, Text to Columns and duplicate removal are available. |
| Protection and printing | Whole-sheet editing protection is checked by the engine; authors can unprotect it. This is not password security or a protected-range permission model. Print areas, paper/orientation/margins and XLSX sheet protection are supported. |
| Advanced Excel features | Native pivot caches, structured table references, password/range protection, VBA/macros, external data connections, advanced conditional formatting and complete Excel function parity remain incomplete. |
| Current limits | 3 MB (3,000,000 bytes) upload during testing, 3,000 rows per workbook import and 100 columns per sheet. Ordinary edits are limited to 5,000 operations per save; use smaller ranges for large formatting or fill operations. |
Version control is the common foundation
Personal drafts, named versions, selected sharing, comparison, overlap review and restoration work across documents and spreadsheets. History records both content and formatting. Restoring a version adds changes; it never erases earlier events.
Collaboration currently uses a central server and explicit sharing. Offline replica synchronization, portable remote histories and character-level live cursors remain engineering work. Real 300–400-page files have not yet been certified for a fixed import-time guarantee.
Check a representative file
Import a copy, review the conversion report, edit a paragraph or a formula, and export it back to Word or Excel. Compare the result with your original before depending on a complex file workflow.
See the engineering priorities · Learn the workflow