Your spreadsheets, no surprises
Opens and saves XLSX with styles, formulas, tables, conditional formatting, validation, comments, charts, images, sparklines and pivot tables. Anything the app doesn't edit is kept when you save.

AIM Sheets
Formulas in Spanish like SUMA and BUSCARV, pivot tables, charts, conditional formatting and Solver. Open and save your XLSX sheets on your device, with the results you've always had.

What usually happens, and how AIM Sheets solves it.
The company's accounts live in an XLSX that only opens on one computer.
AIM Sheets opens and saves XLSX in the browser on any computer, with their formulas, formats and pivot tables.
You open a CSV and the accents come out broken or everything lands in a single column.
AIM Sheets detects the encoding and the separator when opening it, so accents and columns come out right.
The same file goes back and forth by email and you end up with budget_final_v3_good.xlsx.
With Pro, AIM Cloud keeps your sheets, you open them from any computer, and earlier versions are kept when you save.
Getting started is this simple. And this is what you'll see: screenshots of the real app.
Drag an XLSX, CSV or ODS file into the window, or start a blank workbook.
Write formulas in Spanish with help, filter and sort, and create pivot tables and charts in a couple of clicks.
Saving keeps it as XLSX. Anything the app doesn't edit is preserved when you save, so nothing is lost.





Everything AIM Sheets does today, told by what it solves for you.
Opens and saves XLSX with styles, formulas, tables, conditional formatting, validation, comments, charts, images, sparklines and pivot tables. Anything the app doesn't edit is kept when you save.

Column, bar, line, pie, doughnut charts and more, and pivot tables to summarise thousands of rows without a single formula.

Over 500 functions with their Spanish names (SUMA, SI, BUSCARV, CONTAR.SI…) and dynamic arrays. In our tests with real workbooks, the results match those of the most widely used spreadsheets.

Sort and filter, remove duplicates, text to columns, data validation, outlines and subtotals, what-if analysis and Solver to optimise.

Conditional formatting with data bars, colour scales and icons, every kind of number format and table styles.
Detects the encoding and separator when opening, so accents and columns come out right.
Password-protected workbooks open and are saved again with their password.
Install it from your browser to open your workbooks with a double-click and work offline.
SMEs, freelancers and firms that already work this way.
Your clients' spreadsheets, opened just as they are, with their Spanish formulas and their pivot tables.
Sales and cash tracking with charts that update themselves and conditional formatting to spot what doesn't add up.
Campaign budgets with scenarios and Solver to split the investment.
Members' fees and the year's accounts, shared with the board in XLSX.
Each app does its own job and hands the work on to the next.
Spreadsheets that arrive in AIM Mail open straight in AIM Sheets.
When your spreadsheet turns into a database, import it into AIM Tables.
Use your list of products or addresses to print labels with AIM Labels.
Compare two versions of a spreadsheet cell by cell with AIM Compare.
What stays on your device, what travels encrypted and what we store. No small print.
They're opened, calculated and saved in your browser. Our servers don't see or store them.
Once installed, AIM Sheets opens and saves your workbooks even without internet.
With Pro you can store your files in AIM Cloud, on our server in Amsterdam (EU), and open them from any computer. Only the files you store in a vault are end-to-end encrypted.
Biomag S.L.U., a Spanish company. Hosted in Amsterdam (EU), with no advertising and no trackers. Read the privacy policy
Start free, no card. Pro only if you need it.
€0Forever. No sign-up, no card.
From €1.99€1.99 a month with annual billing, or €2.49 a month paying every 6 months. VAT included, no commitment.
Yes: XLSX and XLSM, plus old XLS files with their values, formulas and number formats (saved as XLSX). ODS, CSV and TSV too.
On our test bench of real business workbooks, yes: the formulas give the same results.
Yes. SUMA, PROMEDIO, SI, BUSCARV and the rest, with the semicolon as separator, just as you're used to.
No. Workbooks with macros open and save with the macros kept, but they don't run.
Yes. Install AIM Sheets from your browser and it will work without internet too.
PDF, CSV (the active sheet) and HTML, as well as saving to XLSX, XLSM and ODS.
No sign-up, no card and nothing to install. It opens in your browser in a second.