Grid by ZawebaNumbers in, answers out.
A full spreadsheet that saves .xlsx and stays on your PC. A familiar ribbon, formula bar and grid with about 500 functions, tables, charts, pivot tables and PDF export. Its own .zagr files are .xlsx inside.
This version isn't signed for Windows yet: if SmartScreen warns you, choose More info › Run anyway. Why?
The Mac app isn't notarised by Apple yet: the first time, open it, then go to System Settings › Privacy & Security and choose Open Anyway. On Linux, make the AppImage executable (right-click › Properties, or chmod +x) and run it, or install the .deb.

Grid by Zaweba is a spreadsheet with a ribbon, a formula bar and a grid that will feel at home straight away. Type a formula and the references light up in colour, arrows point to cells, F4 cycles the dollar signs and autocomplete shows each argument as you go. The usual keyboard shortcuts work, from Ctrl+arrows to Alt+= for AutoSum.
Under the hood are 496 worksheet functions, from SUM and XLOOKUP to LET, LAMBDA, FILTER and GROUPBY, with dynamic arrays that spill. Workbooks are saved as .zagr, Grid's own type, which is an .xlsx inside, and Save As .xlsx gives you a file to pass to anyone. There's no account and no cloud: your figures stay on your PC.
Who it's for
- Households keeping budgets and bills
- Small businesses tracking sales, stock and invoices
- Students and teachers working with data
- Anyone who wants .xlsx files without a subscription
Good to know
- Macros aren't run or kept: an opened .xlsm saves as .xlsx
- Older .xls files open with the values as last saved, without their formulas
- Not yet built: sparklines, slicers, goal seeking, pattern fill and spell check
Private by design
- Works offline, with no account and no adverts.
- Checks zaweba.com once a day for a newer version, sending only the app's name.
- Problem reports and feedback are sent only if you click Send.
Everything you need, nothing you don't.
About 500 functions
Maths, statistics, finance, dates, text, lookup and engineering, with dynamic arrays, LET and LAMBDA, every one documented in Insert Function.
Tables and filters
Turn a range into a table with 60 styles, a total row and structured references, then sort, filter and remove duplicates.
Charts that follow the data
Column, bar, line, area, pie, doughnut and scatter charts update live as the figures change.
Pivot tables
Drag fields into rows, columns, values and filters to summarise thousands of rows in a few clicks.
Conditional formatting
Highlight rules, top and bottom, duplicates, colour scales, data bars and icon sets.
Print and PDF
Print areas, fit to pages, repeated title rows, headers and footers, Print Preview and PDF with real text.
Formulas the way you expect
Grid follows the rules spreadsheet users already know: the same error values, 15-digit numbers, the 1900 date system and number formats with sections, colours and conditions. Formulas that return several values spill into the cells below, and only the cells that depend on a change are worked out again, so even a million-row column stays quick.
- XLOOKUP, FILTER, SORT, UNIQUE and TEXTSPLIT
- Named LAMBDAs with recursion
- Circular references found and flagged

Open, save and share
Grid's own format is .zagr, an .xlsx inside, with formulas, styles, tables, conditional formats, validation, notes, charts and pictures all kept. It also opens older .xls workbooks, OpenDocument .ods files and CSV, and it never takes over a file type another program already opens.
- .zagr and .xlsx open and save; .xlsm opens
- .ods opens and saves
- CSV and TSV with the encoding detected

The details
| Works on | Windows 10 and 11 (64-bit), macOS 12 or later (Apple silicon and Intel), Linux (64-bit, x86 and ARM) |
|---|---|
| Saves | .zagr (its own, an .xlsx inside), .xlsx, .ods, CSV and TSV, and exports PDF |
| Own file type | .zagr, opened by Grid when you double-click it |
| Opens | .zagr, .xlsx, .xlsm, .xls, .ods, CSV, TSV and text |
| Functions | 496, with dynamic arrays, LET and LAMBDA |
| Charts | Column, bar, line, area, pie, doughnut and scatter |
| Undo | 100 steps, for everything |
| Version | Version 1.2.2 |
| Download | ZawebaGrid-1.2.2.zip (69 MB): unzip and run, no installer |
| Licence | Free for everyone, with every feature included. No warranty |
Grid FAQ
Can other people open my Grid files?
Yes. Save As .xlsx, the format most spreadsheet programs use (a .zagr is an .xlsx inside, so renaming one works too). Grid's .xlsx files were tested to open in other spreadsheet programs without a repair prompt. Formulas, formatting, tables, charts and notes go with them.
Will my formulas give the same answers?
Grid follows the usual spreadsheet rules for error values, number handling and dates. Its function results were checked case by case against reference results, and newer functions against their documented examples.
Does Grid run macros?
No. Macros and VBA aren't supported, and an .xlsm workbook is saved as .xlsx without them. Everything else in it opens as normal.
Related apps

Layout
Spreads, master pages, fine typography, CMYK and spot colour, live preflight and print-ready PDFs, plus books with contents and an index.
Explore Layout
Base
Design tables, forms, queries and reports in a visual database builder, then export the lot as a working PHP and MySQL website.
Explore Base
Write
A simple, offline word processor with real pages, styles, tables and spell check. It saves .docx, so your files open anywhere.
Explore Write
A fast, offline PDF viewer that opens huge files in a blink, with tabs, quick search and thumbnails, lets you change the text in your PDFs, and prints them just how you want.
Explore PDFTry Grid today.
Download Grid by Zaweba: no account, no adverts, every feature included.