Claude Cowork course: hand tasks to an AI that works on your computer

The sixth course in MONA's free AI course series, covering the product that has been passed around fastest among office workers worldwide since the start of the year: Claude Cowork from Anthropic, launched in January 2026 and by this July spread from Mac to Windows, the web and phones. If the chat version of Claude is an assistant that answers questions, then Claude Cowork is an employee who takes on a whole task: you assign “turn the 200 quotation files in this folder into one summary Excel sheet with charts”, go to a meeting, and when you come back the finished work is sitting there waiting for approval. No coding knowledge, no command window: this is the “Claude Code for non-technical people” that office workers have waited two years for. This course teaches everything from setup to confident delegation, with the mandatory safety rules for letting AI touch your company's real files, written for business owners, managers and office staff using it in business. If you are not yet solid on the chat version of Claude, learn that Claude course for business owners first, and coming back here will go twice as fast.

Part 1: What Claude Cowork is, and how it differs from the chat version of Claude

Anthropic's official positioning for this product is short: Cowork doesn't just answer, it gets to work. The difference is clear in one sentence, but to show how much it changes the way you work, compare two scenes with the same need:

• With the chat version of Claude: you want to consolidate 30 monthly report files into one tracking sheet. The process: open a chat, attach the files in batches, get the result as text, copy it into Excel yourself, format it yourself, build the charts yourself. The AI does the thinking, and you still carry all the legwork.
• With Claude Cowork: you point it at the folder holding the 30 files and give one sentence: “Consolidate into an Excel file tracking revenue by month, one column per branch, insert a trend chart, name the file by quarter.” Then you go do something else. It opens each file, reads it, builds a new Excel file with formulas and charts, saves it in the right place, and reports back on every step it took. You have one job left: open it and approve.

The core difference is that Cowork is given hands and feet on your machine: permission to read and create files in the folders you allow, to use the browser, to connect to the calendar, email and tools you grant. It works like a real employee: takes the task, breaks it into steps, does each step, asks when something is unclear, presents the result when done. On screen there is always a progress panel running alongside, so a glance tells you which step it is on and which file it is touching.

As for the boundary with Claude Code here is a quick way to remember it: the two share the same engine underneath, but Claude Code was built for software people and talks through a command window, while Cowork was built for office people, talks through a friendly interface, and focuses on documents, data and administrative processes. If you work in business, you come in through the Cowork door; your tech team already has the Claude Code course series from us waiting for them.

Part 2: Requirements and setup: 10 minutes from zero to ready to assign work

Three things to know before installing:

• A paid plan is required. Cowork is included in Claude's paid plans: Pro ($20 a month, $17 when billed annually) is the cheapest way in, and Max, Team and Enterprise all include it. One Pro seat carries all three: Claude chat, Claude Code and Claude Cowork, which makes it one of the best AI investments per person for an office worker today.
• Any machine has a way in. The desktop app comes in macOS and Windows versions. From July 2026, Cowork also runs on the web at claude.ai and on phones (rolling out gradually, Max users first): the session runs on Anthropic's servers, meaning you can assign work from your phone at a coffee shop, and even if you shut your computer off and go to sleep it keeps working in the cloud.
• Vietnamese works comfortably. It understands tasks given in Vietnamese well, and reads Vietnamese files fine. Our experience: for complex tasks with many conditions, the clearer and more coherent your instruction, the better. A clear brief gives a good result in any language.

Setup really does take 10 minutes: download the app from the Claude homepage, sign in with a paid account, and the most important step: choose a working folder. Cowork can only touch the folders you specify, and has no permission outside that area. Our firm advice: create a dedicated folder named something like “Cowork-MONA” (or your company name), copy copies of the documents to be processed into it, and grant permission to this folder only at first. Treat it like a new hire: on probation in one room, not yet handed the keys to the whole building. After a few weeks of trusting its work, expand gradually, and Part 7 has a full set of safety rules for this.

Part 3: The first task: tidying a file store, and how to write a brief so the AI does what you mean

The opening task we recommend for everyone new: tidy your own messiest folder. Anyone who has worked for years has a “Downloads” or “Desktop” folder with hundreds of jumbled files: quotes mixed with invoices mixed with screenshots mixed with contracts from several eras. Copy a version into Cowork's working folder, then assign:

“This folder has about 300 files of all kinds. Sort them into groups: contracts, quotations, invoices, images, internal documents, and the rest into a needs-review group. Create a folder tree by group and by year, rename files using the pattern [year]-[type]-[partner name], and when finished, export a summary file listing what moved where. If you are not sure about a file, do not guess, put it in the needs-review group and ask me.”

Fifteen minutes later you have a clean file store and a transparent log. What is good about this task is that it teaches you the full skill set for briefing Cowork: the four-part delegation formula from the chat-version course (context, role, data, output format), plus two new parts that only a world of “AI with hands and feet” needs:

• Stop rules: say clearly what to do when it hits certain situations. “If you are not sure, ask, do not guess”; “absolutely never delete files, only move them”; “ask permission before overwriting any file”. With the chat version, a vague instruction costs you one poor answer; with a tool allowed to touch real files, a vague instruction with no stop rules is asking for trouble.
• Proof of work: make it leave a trail. “Export a summary file”, “state which files were renamed from what to what”. This habit later becomes culture: everything AI does in your company can be traced to who did what and when.

The most valuable trait of Cowork compared with earlier generations of AI: when it hits something hard, it asks instead of pushing ahead blindly. Give it a task with gaps in the brief and it stops exactly at the gap: “this file looks like both a quote and a contract, where should it go?” You answer, it records that as a rule and carries on, and next time it does not need to ask. It feels like training a new employee, except this one learns once, remembers forever, and never takes leave.

Part 4: The automated office: Excel with real formulas, Word to standard, PowerPoint that looks sharp

This is the part that made Cowork spread quickly among office workers: Anthropic equipped it with ready-made skills for creating real Office documents, not “text pasted into a file”. Specifically:

• Excel: builds spreadsheets with live formulas (totals, lookups, conditional formatting) and charts. Open the file and change a source number and the cells update by themselves, just like a file built by an Excel-savvy employee.
• Word: properly structured documents: heading levels, table of contents, tables, correct page size and margins, print-ready.
• PowerPoint: slide decks with layout, images and speaker notes for each slide. A “presentable draft” level for internal meetings and a base for the design team to polish further.

Three scenarios that fit straight into Vietnamese office life:

1. A weekly report that builds itself. “Every Friday afternoon, read the data files in the Sales folder and build a weekly report in Excel using the attached template: revenue by channel, compared with last week, highlight in red anything down more than 10%, plus a Word page summarizing 5 points for the board.” What used to take an employee a whole Friday afternoon becomes 10 minutes of machine work, with a person only reviewing and sending.
2. Invoice reconciliation. “This folder has 80 PDF invoices and a bank statement file. Match each invoice against the transactions and export a three-tab sheet: matched, amount mismatch, no transaction found.” Every in-house accountant knows how tedious this is, and how good it feels to have something do it without a single complaint.
3. A complete customer proposal. “Read the customer's file in the folder, read our price list, and build a set of three: a needs analysis (Excel), an 8-page solution proposal (Word), and a 10-page presentation (PowerPoint), one consistent storyline, in the voice of the company template file.” A pitch package that used to take two days and three people now has a first draft by the end of a morning.

A reminder of the principle that has become a house rule across this series, and one worth engraving here: what AI builds is a draft for review, and any figure that gets signed or paid must be double-checked by a person. Cowork builds Excel a hundred times faster than a person, and it can also get one formula cell wrong just like a person. Companies that use AI wisely differ in exactly one way: however fast the machine runs, the human review step stays, and is never dropped.

At this point, try a calculation we often put on the table for clients: add up the hours your whole company spends each month on exactly four things: “gather, copy, build, send” (gathering files, copying figures, building sheets and slides, sending reports). For a company of 20 to 50 people, the number we measure usually lands around 150 to 250 hours a month, more than one full-time employee just to move information from one place into another format. Cowork was made to swallow exactly that block of work. If you want someone to sit down with you and see where your company's 250 hours are flowing and how much AI can skim off, call us on 1900 636 648: 15 minutes describing your setup, and MONA points out 3 places you can cut right away, free for this check-up.

Part 5: The heavy hitters: teaching skills by screen recording, scheduled automatic runs, and working in the cloud

Three features in this part are why we put Cowork in the “worth learning this quarter” group rather than a toy waiting to mature:

One, teaching skills by screen recording (Record a Skill, released July 21, 2026). This is the game-changing feature for people who are not tech-savvy. Any job you can do by hand but find hard to describe in words (logging into internal software to export figures, a 12-step process on a website, how to filter and paste numbers between three files) now just needs you to switch on screen recording and do it once yourself. Cowork watches the recording, understands the steps, and packages them into a skill it can run again. From now on, “writing a procedure” no longer means sitting down to type a 5-page document nobody reads: demonstrate once and the machine learns the trade. We jokingly call it “passing on the craft without opening a class”, and it is available on the Pro, Max and Team plans.

Two, scheduled tasks. For any recurring task (Monday morning report, month-end reconciliation, a daily market news roundup), set a schedule and it runs by itself: at the set time the machine does the work and leaves the result in the right place for approval. Combine that with Record a Skill and you have the formula: teach once, schedule it, and the work comes back as regular as clockwork.

Three, working in the cloud, controlled from your phone. As Part 2 mentioned, the web and phone versions of Cowork run the session on Anthropic's servers: assign work from your phone while riding in a car, close your computer and it keeps grinding, and scheduled tasks can run even when none of your machines is on. For executives who travel often, this is a vital difference: the working machine no longer depends on the laptop folded in your bag.

Part 6: Six tasks to hand to Cowork in the first month

We have condensed this into a menu of six dishes, ordered from easy to hard, each with one sample brief line you can adjust the names and numbers in and assign right away:

1. Clean up and standardize a file store (learned in Part 3): the safest starter, value visible in 15 minutes.
2. Consolidate many files into one master sheet: “Read the 40 quotation files in the folder and export Excel: customer, line item, final price, date, owner; for duplicate customers keep the latest version and note the older ones.”
3. A recurring report that builds itself (Part 4) + scheduling (Part 5): combine the two lessons into a weekly process.
4. Meeting prep file: “Tomorrow morning I'm meeting company X. Read my email threads with them in my inbox, the related files in the folder, find recent news about them online, and build a one-page brief: who they are, history of working together, hot topics to raise, 3 questions to ask.”
5. Reconcile and flag discrepancies: invoices against bank statements, book inventory against stock counts, customer lists across two systems. The kind of work people are most likely to get wrong because it is the most boring, and machines do it most reliably.
6. Digitize a procedure with Record a Skill: pick a procedure that currently lives only in one veteran employee's head, and ask that person to record themselves doing it once. From then on the procedure is a company asset, not a person hoarding the work who dares not take leave.

Part 7: Safety rules: letting AI touch real files without losing sleep

Cowork is powerful because it has hands and feet, and anything with hands and feet needs rules. Five rules we apply to MONA's own operations and advise every company to copy as they are:

1. Isolated folder. Cowork is only given its own working folder containing copies of documents, never the root folder holding the only copy, and certainly not the whole drive. The biggest loss new users tend to suffer is granting too broad a permission themselves and then forgetting what they gave, not the AI deciding to wreck anything.
2. No deleting, no overwriting without permission. Make it a catchphrase in every brief: only create new and move; ask before deleting or overwriting. The machine follows this rule more strictly than people do.
3. Confidential data has a gatekeeper. Customer personal records, confidential financial figures, documents under confidentiality commitments: to go into Cowork's working folder they must be approved by the person in charge. On the enterprise plan, administrators can also lock features, control spending and monitor company-wide usage from the admin page.
4. Automated work needs a log and a reviewer. Every scheduled task should state clearly where the result goes, who opens it to review, and who to notify if it is wrong. Automation with no reviewer is risk on a timer.
5. Sit alongside in week one. The first time you give a task, open the progress panel and watch it work from start to finish at least once, just like coaching a probationary employee. Understand how it thinks before letting it run alone.

As for the tool's real limits, said plainly so you set the right expectations: Cowork works in sessions that someone assigns, and processing office documents and data is its strength; it is not a real-time transaction system and cannot replace the sales, warehouse and accounting software running your company's core operations. And like any AI, sometimes it misreads the brief: the clearer the brief and the tighter the stop rules, the better behaved the result.

Part 8: The boundary between Cowork and custom software, plus a 2-week plan

The question we get most from clients now that Cowork is in the spotlight: “so we don't need to build software anymore?” The honest answer: no, and understanding this boundary correctly is where this article saves you the most money.

Cowork is an AI work shift for individual people and individual tasks: someone assigns, someone reviews, it runs on office documents, wonderfully flexible, built in a day. But when your problem turns into the living business flow of the whole company (orders pouring in from many channels that must match inventory automatically, issue invoices, push to shipping, message customers, post to the books, hundreds of transactions a day, many people with many permission levels, one missed beat costs real money), that problem needs something else: custom-built automation software, with tight permissions, a log of every action, load handling, someone responsible for maintenance, running 24/7 without depending on anyone remembering to assign work. One is an excellent virtual employee, the other is a production line: smart companies use both, each in its right place.

A 2-week plan to bring Cowork into your company with confidence:

• Week 1: one person in charge (ideally someone who has finished the chat version of Claude course) installs it, sets up the isolated folder, and runs dishes 1 and 2 on the Part 6 menu on copies of real data. At the end of the week, present the results to the board along with the log of what the machine did.
• Week 2: issue the 5 safety rules from Part 7 as a one-page document, pick 2 recurring tasks to put on a schedule, and record the first procedure with Record a Skill. By the end of the week your company has: a clean file store, 2 reports that run themselves, and 1 procedure turned into a digital asset.

After those two weeks, you will see for yourself which tasks Cowork carries well and which flow in your company is crying out for a real system. At that point, bring exactly that flow to talk with us: MONA has over 10 years of experience and 14,000+ projects, and specializes in the stretch “from virtual employee to automated production line”, with a free check-up of your setup and transparent quotes where we build at the price we sign. Call 1900 636 648 or send us a brief at info@themona.global, tell us about the business flow that eats the most people at your company, and we will answer straight: which parts Cowork can handle on its own so you save the cost of writing software, which parts deserve investment in a dedicated system, and how long it takes to pay back.

Quick answers

Is Claude Cowork free? No, it needs a paid plan: the cheapest is Pro at $17 to $20 a month, which includes the chat version of Claude and Claude Code in the same seat. Max, Team and Enterprise plans all include Cowork.

Is Claude Cowork hard to use, can someone who isn't good with computers learn it? Yes, they can. All the actions are choosing a folder and typing a brief in everyday words, Vietnamese works. What you need to learn is the habit of writing clear briefs and the habit of reviewing results, both of which this course covers fully, and no technical skill is involved.

Does Cowork run on Windows, and does it need a powerful machine? There are macOS and Windows versions, plus web and phone versions rolling out since July 2026. The web version runs on Anthropic's servers so even a weak machine works well, and scheduled tasks do not even need a machine switched on.

How is Claude Cowork different from Claude Code? Same engine, different door and different audience: Cowork has a friendly interface for office workers handling documents and processes; Claude Code runs on the command line for software people. If you work in business, learn Cowork; if you want to build software yourself, learn Claude Code (our course series has both).

Is it safe to let AI touch company files? It is safe if you follow the rules: grant permission by isolated folder holding copies, no deleting or overwriting without asking, confidential data approved by a person, automated work reviewed by a recipient. Enterprise plans have an admin page to lock features and monitor company-wide usage.

Can Cowork replace the company's management software? No. It is a virtual employee for office tasks, not a business system running hundreds of transactions a day with permissions and load handling. See Part 8 for the specific boundary, and we offer free advice for each case on 1900 636 648.

MONA's free AI course series keeps growing: upcoming courses on vibe coding with Gemini, automated AI workflows and AI agents are already in the table of contents. See you in the next course.