Guides, comparisons and how it works.
How to get real work done with an AI agent in Word, PowerPoint, Excel, LaTeX and Markdown files, where Nebula Writer fits next to other tools, and how its agent is built.
Guide8 min read
AI agent for documents: what it can do in each format
What the Nebula agent edits in Word, Excel, PowerPoint, LaTeX and Markdown files, with three real before-and-after runs and the prompts behind them.
September 5, 2026
Comparison5 min read
Nebula Writer vs. Microsoft 365 Copilot
Copilot comes with a Microsoft 365 plan. Nebula Writer edits your .docx, .xlsx and .pptx files with an AI agent, and the editor is free. Where each fits.
July 17, 2026
Comparison5 min read
Nebula Writer vs. Overleaf: compile LaTeX on your computer
Overleaf's free plan stops a compile after 10 seconds. Nebula Writer compiles LaTeX on your computer and has an AI agent that edits it. When each fits.
July 15, 2026
Guide5 min read
Keep or discard: how to check every AI edit to a document
Every agent change waits for your decision. How to check it in Word, Excel, PowerPoint, LaTeX and Markdown files, and how Discard puts the file back.
August 31, 2026
Guide5 min read
How to edit an existing PowerPoint deck with AI
Audit a deck, fix only the slides that need it, and keep fonts, colors and notes intact. Prompts, a real before-and-after, and checks before you send.
September 28, 2026
Workflow4 min read
How to turn a Word report into a PowerPoint deck with AI
Give the agent a .docx report and get an editable .pptx with native charts and speaker notes. The prompt, what to check, and how to keep or discard it.
September 13, 2026
Guide4 min read
How to convert LaTeX to Word for coauthors and reviewers
Make a Word copy of a LaTeX paper for reviewers, check what does not carry over, and bring their tracked changes and comments back into the .tex source.
September 13, 2026
Guide7 min read
Edit a Word document without Microsoft 365: 4 free ways
Four free ways to edit a .docx without a Microsoft 365 plan, where each one is the better choice, and how to have an AI agent edit the file itself.
August 26, 2026
Guide7 min read
Edit Excel and PowerPoint files without Office
Free ways to edit .xlsx and .pptx files without an Office plan, where each fits best, and how an AI agent can fix a workbook or deck in place.
September 9, 2026
Guide6 min read
Overleaf compile timed out? How to fix it or compile locally
Why Overleaf stops a free compile after 10 seconds, Overleaf's own fixes, and how to move the project to your computer when they are not enough.
August 12, 2026
Engineering9 min read
Why our agent edits Office files with native operations
Typed edit operations instead of throwaway scripts: how the Nebula agent changes only the part of a Word, Excel or PowerPoint file you asked about.
July 29, 2026
Guide6 min read
Fix a wrong total in Excel and keep the formula
Find a SUM range that misses rows or a total typed as a number, fix it as a formula by hand or with AI, and check everything that depends on it.
October 9, 2026
Guide6 min read
Can AI edit a Word document directly? What to check
Stop pasting chat answers back into Word. How an AI agent can edit the .docx in place, what that keeps intact, and how to review the change.
October 6, 2026
Guide6 min read
Review tracked changes and comments in Word with AI
Sort dozens of tracked changes and comments by type, accept or reject them, reply to or resolve comments, then keep or discard the whole pass.
September 23, 2026
Guide6 min read
What happens to your files when you use the AI agent
Where your files live, what is sent when you ask the agent, how edits and restore points work, and the settings that change what goes with a request.
September 17, 2026
Engineering8 min read
How Discard puts a file back byte for byte
What Nebula Writer saves before the agent writes, how Discard restores the exact original bytes, and why it refuses to overwrite your newer edits.
August 19, 2026
Guide5 min read
How to write a thesis in LaTeX on your computer
Set up a LaTeX thesis that stays easy to build: folder layout, a main.tex skeleton, a bibliography that works, local compiling and backups.
August 6, 2026
Guide7 min read
Common LaTeX errors and how to fix them
What eight common LaTeX errors and warnings mean, what usually causes them, and the smallest fix for each, with code you can copy.
July 23, 2026
Engineering8 min read
Observe, act, verify: how we think about AI agents for documents
Documents are a hard place for AI agents. Why an agent needs three kinds of tools to work in them: ways to look, ways to edit precisely, and ways to check its own work.
June 18, 2026