Excel for Mac has no “Evaluate Formula”. Teyres gives you something better: press ⇧⌥A and the active cell breaks into a navigable tree — every sub-expression with the value Excel itself computes for it, and the cells it touches lit up on the sheet as you move.
14 days, full features, no card · macOS 13+ · Excel for Mac 16 · then $4/month
site/media/tree.gifThe tools you would reach for on Windows are missing, so you fall back on habits that cost you an afternoon.
The step-through dialog Windows has simply is not in Excel for Mac. You read a 400-character nest and hope.
Select a fragment, press F9, read it, undo — and pray you did not just commit a constant into a live model.
Precedent arrows do not survive a click, do not cross sheets usefully, and tell you nothing about values.
The panel floats over Excel, follows your selection, and never takes the keyboard away from you.
Every sub-expression becomes a node with its own evaluated value — computed by Excel, never re-implemented. Walk it with W S, open and close with D A, and the referenced cells highlight on the sheet as focus moves.
site/media/precedents.gifThe question no formula bar answers. Press Tab on a criterion-based function — SUMIFS, COUNTIFS, AVERAGEIFS — and the inspector lists the cells that passed every criterion, paging through big hit sets.
site/media/inspector.gifPress ⇧⌥S on any cell: same-sheet dependents appear instantly, then the scan widens to the whole workbook. Space jumps to one and re-scans from there, so you can climb the model upward as fast as you came down it.
site/media/dependents.gifSelect a range and press ⇧⌥D. Every cell becomes a square coloured by its formula pattern, so a broken fill or a constant typed over a formula shows up as the one square that does not match. Hover for the formula; click to select the whole pattern.
site/media/map.gifA real model, a wrong number, and how long it takes to find out why.
No add-in to install into Excel, no file conversion, nothing to configure.
Open the DMG and drop Teyres in. It is signed and notarized by Apple, so it opens with a normal double-click.
No Dock icon, no window. The ƒx mark in your menu bar is the whole interface: license, settings, and a diagnostic log if you ever need one.
With Excel frontmost, press ⇧⌥A. macOS asks whether Teyres may control Microsoft Excel — allow it. That permission is how it reads formulas and highlights cells; it never writes to your workbook.
Put the cursor on any formula and press ⇧⌥A. Move with W S, expand with D, jump with Space, close with Esc. That is the whole learning curve.
Excel keeps focus the entire time. You never reach for the mouse.
Start with 14 days of the full app — no card, no account, no nag screens until the last days.
Two months free versus monthly · cancel any time
No card, no account. Download and press ⇧⌥A.
Prices in USD. Payments and invoicing are handled by Polar as merchant of record.
No. Teyres reads formulas and values and applies temporary cell highlights, which it removes when the panel closes (there is a “Clear Stuck Highlights” menu item for the rare case where Excel is left mid-flight). It never writes a value, never saves, and never touches a file on disk.
No telemetry, no analytics — not in the app and not on this website. The only automatic network call is a once-a-day license check that sends your license key and this Mac's name; never cell contents, formulas, or file names. Problem reports are assembled on your Desktop and emailed by you, only if you choose to send one.
macOS 13 or later and Microsoft Excel for Mac 16.x (developed and measured against 16.112 and 16.113), on Apple silicon or Intel. It does not work with Numbers, Google Sheets, or Excel in a browser.
Three per license — a desktop, a laptop, a machine at the office. Activations can be moved between Macs from the customer portal.
Take the 14-day trial first; it is the whole app. If you subscribe and still change your mind, email within 15 days and you get your money back, no questions. Cancel any time from the customer portal.
The app checks daily and installs updates itself, signed and verified. You can also run the check from the menu bar whenever you like.
Real. Every value shown is one Excel computed, asked of Excel itself — so volatile functions, your workbook's calculation settings, and your locale all behave exactly as they do in the sheet. Where the app cannot prove a value is exact, it tells you instead of showing a number you might trust by mistake.
Fourteen days, everything unlocked, no card. If it does not save you an afternoon in the first week, delete it.
macOS 13+ · Excel for Mac 16 · signed and notarized by Apple