Analyse documents with AI: PDF, Word & Excel

Companies rarely suffer from a lack of information. The problem is that the decisive passage is buried in a contract, an old policy, or meeting notes nobody can find at the right moment. Analysing documents therefore means more than searching text. It means understanding relevant statements in context and making the evidence behind them visible.

A useful analysis does not only answer “What does this document say?” It also shows who the statement applies to, when it was written, whether a newer document changes it, and what remains uncertain. That turns scattered files into a reliable basis for the next decision.

Analyse PDFs with AI

PDFs often contain contracts, policies, meeting minutes, or scanned material. yeos searches approved content, summarises relevant sections, and links the answer to the document, page, and context. With scanned PDFs, the result depends on whether the text can be extracted reliably.

Analyse Word documents with AI

AI can search Word documents for clauses, changes, responsibilities, and open points. Teams can review a policy, summarise an offer, or compare passages across versions while keeping the source version traceable.

Analyse Excel spreadsheets with AI

Excel files often contain the numbers behind a decision. AI analysis can search tables for relevant values, periods, and deviations and explain the result in plain language. Formulas, column labels, filters, and the underlying period still need to be checked before acting on the result.

Compare multiple documents with AI

When an answer is distributed across several files, yeos can analyse approved documents together. This helps compare contract versions, policies, project updates, or offers. Conflicting statements remain visible instead of silently favouring one source.

Analyse documents with ChatGPT: which data is transferred?

Before uploading company documents to an external AI service, check what data is transferred, how long it is retained, whether it can be used to improve models, and which contractual commitments apply. The answer depends on the specific service, plan, and settings. For confidential material, approved sources, clear access rights, and traceable data flows matter.

yeos is designed for governed company sources: the organisation decides which documents an agent may use, and answers retain their underlying sources. Sensitive decisions remain with the responsible people.

The question behind the document

Most people do not want to read a document. They want to prepare a decision. Does the warranty still apply? Which deadline is in the contract? What conditions does the policy set? What did the last project meeting agree? The answer may be distributed across several files and depend on details such as version, date, or scope.

• ◆A contract contains the original terms while a later addendum changes a deadline.
• ◆A policy defines the rule, but a separate guide explains exceptions for one location.
• ◆Project minutes record a decision while tasks and status are updated in another document.
• ◆A customer email adds a promise to a formal offer that is not mentioned in the standard document.

What good document analysis needs to do

One passage is often not enough. Analysis must find the right documents, bring relevant sections together, and keep the distinction between evidence and interpretation clear. That is why the answer needs to include the path that led to it.

• ◆Context: the statement is considered alongside related conditions and exceptions.
• ◆Provenance: file, section, page, and date stay linked to the answer.
• ◆Versions: newer addenda and changes are not mixed with older drafts.
• ◆Contradictions: conflicting claims are shown instead of silently choosing one.
• ◆Limits: missing information and questions without a clear answer remain visible.

From a document to a verifiable answer

yeos searches your approved documents in plain language. It finds relevant passages for a question and can retrieve the full section when definitions, exceptions, and cross-references matter. The answer names the sources it used, so an accountable person can verify it in a few clicks.

This matters especially when documents are not perfectly structured. PDFs, Word files, spreadsheets, and scanned material may use different terms for the same subject. Analysis should not simply smooth those differences away. It should show what a conclusion is based on and where an additional review is needed.

Common use cases

• ◆Compare contracts and identify changes between an offer, the signed version, and later addenda.
• ◆Search internal policies for specific rules, responsibilities, and exceptions.
• ◆Combine project documents into a traceable view of status, open risks, or next steps.
• ◆Reconstruct customer history from offers, emails, and meeting notes.
• ◆Answer compliance or audit questions with the relevant document passages and their effective dates.

When documents disagree

Contradictions are not an edge case. An old template may state a different deadline from the signed addendum. Meeting notes may record a decision that was later changed. Trustworthy analysis does not hide these differences. It identifies the conflicting sources, weighs their dates and context, and leaves the final assessment to the responsible person.

Analyse safely, without opening everything

Not every document belongs in every answer. Document analysis therefore needs clear access boundaries: an agent should see only the knowledge collections approved for its task. yeos respects existing organisation and workspace permissions, keeps sources with the result, and shows which documents were used.

• ◆Define which documents and folders each agent may use.
• ◆Start with read-only research and keep consequential actions behind human review.
• ◆For sensitive questions, check the source, version, scope, and intended recipient.
• ◆Keep open questions and corrections instead of removing them from the result.

Start with one concrete question

You do not need to reorganise the entire file store first. Choose a recurring use case with clear ownership: contract review, HR policies, or customer history. Define the authoritative sources and test the analysis with real questions from daily work. When the answer is easy to find, supported by sources, and simple to correct, it becomes a workflow your team can reuse.

The value is not in summarising every document automatically. It is in finding the relevant passage at the right moment, preserving its context, and grounding a decision in evidence that people can check.