Editors, files & views

Nebula Writer opens each file in an editor designed for that format while keeping the project tree, tabs, and agent in one workspace.

Find and open work#

Use the project sidebar search to filter files in the current project. You can drag and drop files, rename them, delete them with a short undo window, or reveal a local file in the operating system.

The command palette gives you a keyboard route to common actions. Open it with Cmd/Ctrl + Shift + P; Cmd/Ctrl + K also works when focus is not inside the code editor. Search by the action you want rather than memorizing every menu.

For text inside the active document, use Cmd/Ctrl + F. Find-and-replace is available with Cmd/Ctrl + H where the editor supports it.

Markdown and text#

Markdown uses a single Live Preview surface: the source syntax is styled in place as you type. It is not a side-by-side split preview.

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The preview supports common Markdown structures including headings, tables, checklists, callouts, fenced code, and math. Markdown is a good default for notes and drafts that should remain easy to diff and reuse.

Markdown can be exported to PDF. Inspect page breaks and wide tables in the export before sharing it.

Word documents#

DOCX files open in a native paginated editor with Word-like page geometry, styles, fonts, tables, images, rulers, headers, footers, and page settings. Use Save As before high-risk restructuring. DOCX supports native PDF export.

Nebula Writer can expose comments or tracked-revision content present in a document, but it does not reproduce the full manual Word Review sidebar. Verify specialized review workflows in Microsoft Word before legal or regulated handoff.

Spreadsheets#

Workbooks open with a grid, formula bar, sheet tabs, formatting tools, charts, and formula assistance. Cross-sheet references and common formulas are supported, but structural warnings can identify workbook features that may drift during edits.

Save a workbook as XLSX when you need formulas, multiple sheets, charts, or formatting. CSV is a flat-data export and cannot preserve those workbook features.

Presentations#

PPTX files open with slide thumbnails, a canvas, object and formatting controls, speaker notes, and deck-level audit tools. You can add, duplicate, delete, reorder, and edit slides and their objects.

Review the full slide after an agent edit. A short content change can still affect text fit, alignment, layering, or crop geometry.

LaTeX#

LaTeX provides Edit, Split, and Preview modes. Split pairs the source with the compiled PDF; Preview gives the PDF more room. Compilation diagnostics, zoom, SyncTeX navigation, and PDF export are built into the LaTeX workspace.

See LaTeX & research before enabling shell escape or installing the optional full TeX Live environment.

PDFs and reference files#

PDFs are read-only. Open them to inspect pages or attach them to an agent request. Nebula Writer does not currently edit a PDF in place or expose a general PDF-to-document conversion action.

Images and other project assets can stay beside the documents that use them. Keep filenames descriptive so they are easy to mention in prompts and verify in exports.

Save and export behavior#

For PPTX or workbook PDF output, use an application that supports that export and verify the result there.