Do I need Claude Cowork, or a tool for one spreadsheet?

What is Claude Cowork for?

Cowork is Anthropic's agentic workspace: you describe a goal, give Claude access to the folders and tools you choose, and it plans and carries out the work — reading, editing, and creating real files rather than describing how you might. It is built for knowledge work in general, not software engineering, and tasks can be set to run on a schedule without anyone watching.

That is a much larger ambition than answering a question about a spreadsheet. If what you want is a whole job taken off your desk, Paperswift is not the product you are looking for.

Where does the confusion come from?

From the words "local files". Cowork works directly in folders on your own machine, which sounds like the same promise Paperswift makes. It is not the same promise.

Cowork's local access is about reach: it can get at your files without you pasting anything. The work itself runs on Anthropic's cloud infrastructure, so the contents of what it reads travel there to be processed. That is how it can do so much.

Paperswift's claim is narrower and structural. There is no upload step at all. The export is opened inside your browser, and the only thing ever used when you ask a question is your column names and whether each holds text, numbers, or dates — never the values in any row. The privacy page spells out where the line falls.

Neither is a failing of the other. They are different designs, aimed at different problems.

Which shape is your problem?

A rough test: if you would struggle to write the task down in one sentence, it is Cowork's kind of work. Pulling numbers from several places, drafting the summary, and doing it again every Monday is exactly what an agent is for.

If the task fits in one sentence ("show me revenue by month from this export"), an agent is a heavy instrument for it. You do not want a plan, a set of permissions, and a review step; you want the chart. That is the whole of what Paperswift does, and the reason it can do it without your file going anywhere.

What does each one cost to set up and run?

Cowork comes as part of a Claude subscription across the individual, team, and enterprise tiers, and runs on desktop with web and mobile in beta — so if you already pay for Claude, starting to use it costs nothing extra. What it can cost is usage, and an agent is the easiest way there is to spend that without noticing.

This is the real difference between asking a question and delegating a job. A question is one exchange, and you can see roughly how big it was. A job is a plan, a run of steps, files read along the way, drafts revised — all of it consuming your allowance, and by design you are not watching each step go past. Point Cowork at a folder of large exports and the reading alone is substantial before any actual work begins. Set it to run unattended every Monday and it keeps spending whether that week's output was worth having or not.

None of that is a flaw; it is the bargain an agent offers, and for the right job a good one. But it means the cost of a task is hard to predict before you set it going, and hardest for the people the promise appeals to most — someone who wants a report built without learning to build it is not well placed to guess what building it will consume. The first clear signal is often a limit reached partway through a job, which is an expensive place to stop.

Paperswift cannot do this to you, mostly because it does so much less. Questions are unlimited on every tier including the free one, and the model only ever receives your column names and their types, so what it costs to ask does not grow with the size of your file. Nothing runs while you are away and there is nothing to schedule. The free tier shows every chart on screen; taking results back out (downloading, saving a chart, exporting) is what the paid tier adds. Current figures are on Claude's pricing page and ours.

Which one should you choose?

Choose Cowork when the work is a job: multi-step, spread across tools, worth delegating and repeating on a schedule. Choose Paperswift when the work is a question about a file you already have, and the file should stay on your machine. Using both is sensible — an agent for the sprawling work, something small and private for the quick look at an export.