How to summarize a document

Documents come in many shapes, and most of them don’t arrive with a summary. A 30-page policy in Word, a board deck in PowerPoint, a quarterly spreadsheet exported as CSV, a project brief in Google Docs that four people have edited. Before a meeting, a handover, or a decision, someone needs the short version, and it has to be accurate enough to act on.

This guide covers how people usually summarize documents across different formats, and how to do it in Fabric, including asking for a summary across a whole folder and writing one straight into the document with each change for you to accept or reject.

How people usually summarize documents

Reading and writing it yourself is still the most common approach for anything important. The person who reads it understands it, which matters. For a long document it takes an hour or more, and the summary usually ends up in an email that’s hard to find six months later.

The office suites now have AI built in. Microsoft Copilot in Word and Gemini in Google Docs can summarize the open document, which is convenient when everything lives in that suite. People who work across both, or who need to summarize a Word file alongside a PDF and a spreadsheet, end up running the same request in several places.

Pasting a document into ChatGPT or Claude is the other route. It handles most formats and produces a readable result. The summary sits in a chat thread, separate from the file, and checking a claim means finding the passage in the original yourself. Teams also describe a wider version of the same problem: the answers exist somewhere in their documents, but people can’t find them without asking a colleague.

Step 1: Bring the documents into Fabric

Drag files into the Fabric web or desktop app, paste them, or click Upload a file. Fabric handles DOCX, TXT, Markdown, HTML, and JSON documents, PPT and PPTX slides, and CSV and XLSX spreadsheets, which the AI can read.

If your team works from a shared drive, the Fabric desktop app mounts Fabric as a virtual drive on Mac, Windows, and Linux, so documents move in like any other folder. Google Docs, Sheets, and Slides come in through a Google Drive connection, which syncs in both directions. Connections need a paid plan. How to search Google Drive by what’s inside files covers that setup from the search side.

Step 2: Use the automatic summary for triage

Fabric writes a short summary of each document when it arrives, alongside extracted attributes such as content type and topics, and suggested tags. The smart organization page covers what’s recorded. For a folder of inherited files, these summaries show at a glance which are the current policy and which are old drafts, before you open anything.

Step 3: Ask the AI assistant for the summary you need

Open the folder holding the document and open the AI assistant. It’s automatically limited to that folder; you can also right-click a folder and add it to the assistant’s context without opening it. Then ask in terms of what you’ll do with the answer: “Summarize this policy for a new starter”, “What changed between these two versions of the brief?”, or “From the Q3 spreadsheet, which regions missed target and by how much?”

Every answer cites its sources with clickable references, so you can open the paragraph, slide, or file it drew on. For legal, financial, and HR documents, checking the source is worth the extra few seconds. Ask follow-up questions in the same thread, and switch models if you want a second reading; one subscription covers Gemini, OpenAI, Claude, DeepSeek, Grok, Qwen, and others.

For a confusing letter or bill rather than a work document, how to use AI to explain a confusing letter or bill walks through the same approach at home.

Step 4: Write the summary into the document

The assistant can edit documents directly. Ask it to add an executive summary to the top of a Fabric doc, or a short abstract to a long report, and it proposes the change. You accept or reject each edit, so nothing changes without your say. This works in Fabric’s notes and docs editor, where the summary then sits in the document for every reader.

If you’d rather keep the summary separate, save the assistant’s answer as a note in the same folder. A summary note per document in a project folder makes it quicker to brief someone joining later.

Step 5: Share the summary with your team

Share the document or summary note with a shared link and choose view, comment, or edit permission. Roles and permissions in Fabric are set at space and file level, with viewer, commenter, editor, and admin roles. Commenters can highlight text and add a comment, and each comment can be marked completed when it’s dealt with.

Over time, a shared space of documents with their summaries becomes a reference a team can search and ask questions of. How to create a shared knowledge base covers how to set one up.

Frequently asked questions

How do I summarize a Word document with AI?

Upload the DOCX file to Fabric, open its folder, and ask the AI assistant for a summary. The answer cites the passages it drew on.

Can AI summarize a PowerPoint presentation?

Yes. Fabric handles PPT and PPTX files, and Google Slides through a Google Drive connection. Ask the assistant for a summary of the deck or of specific slides.

Can AI summarize an Excel spreadsheet?

Yes. The assistant can read CSV and XLSX files, so you can ask for a summary of the figures or a specific question about them.

How do I summarize a Google Doc?

Connect Google Drive to Fabric, which syncs your files in both directions, then ask the assistant about the document. Connections need a paid plan.

Can I summarize many documents at once?

Yes. Put them in one folder and open the assistant there. It’s limited to that folder and analyzes everything in it.

Can the AI add a summary to my document for me?

Yes. The assistant can edit documents directly, and you accept or reject each change it proposes.

How do I check an AI summary is correct?

Follow the citations. Each answer includes clickable references to the source, so you can read the original passage before relying on the summary.

Can I summarize documents on Fabric’s free plan?

File uploads and limited AI use are included on the free plan. Connections such as Google Drive need a paid plan; the team plans page lists options for groups.