Software
Turn the spreadsheet your business runs on into software, multi-user, validated, permission-controlled and usable on a phone.
This page is for the business that runs on one spreadsheet, the master sheet nobody trusts. A spreadsheet to web app conversion takes that sheet, keeps every rule and column that matters, and turns it into software several people use at once, from a phone, with a record of every change. The Excel exports stay.
the master spreadsheet
spreadsheet to web app, tab by tab
Every business has a sheet like this, and the reasons to replace spreadsheet with software are the same everywhere. We take the sheet apart, keep the logic that matters, drop the workarounds, and build software that does the same job with several people in it at once.
01 of 8
We sit with the person who runs the sheet and go through it tab by tab: what each column means, which formulas matter, which are dead, and where the workarounds live. The hidden tab that calculates overtime rates becomes a written rule everyone can read.
02 of 8
A sheet stores everything in one grid. The app stores customers, jobs, staff and rates as separate, linked records, so a customer's name lives in one place and appears everywhere. This is the Excel database replacement: each row that used to be retyped becomes a record you pick from a list.
03 of 8
Everyone works in the same app at the same time, with no locked files and no copies. The dispatcher updates a job while the accounts person adds a cost to it, and both see the change straight away. There is one version, and it is always the live one.
04 of 8
Fields accept only what they should: a date is a date, a rate comes from the rate list, a job cannot close without a sign-off. Permissions match roles, so a technician updates their own jobs, the office edits everything, and only the owner changes prices.
05 of 8
The formulas become rules that run on their own. Quote totals, margins, overtime, stock on hand and compliance due dates recalculate when the data changes, not when someone remembers to drag a formula down. This is spreadsheet automation software in the plainest sense: the sums your sheet did, done every time.
06 of 8
Reports come from the live data instead of a pivot table someone rebuilds every Monday: jobs by status, revenue by customer, hours by staff member, with filters and date ranges. For the people who love Excel, every list and report exports to a spreadsheet in one click.
07 of 8
Your existing rows come across on day one. We import the history from the sheet, match old columns to new fields, clean the obvious errors and show you a test copy to check before the switch. Years of jobs stay searchable, and the app starts full, not empty.
08 of 8
The parts of the sheet filled in by hand on site become forms that work on a phone: a job update, a stock count, a safety check, a timesheet. It saves even with poor signal. The person who used to text their numbers to the office now enters them once.
You send the sheet. We audit it with the person who runs it and map every column and formula to a field or a rule. We build the app in short rounds, showing each screen beside the tab it replaces. Your history is imported and checked by your team. On switch day the sheet becomes read-only and the team works in the app. From then on the calculations, reports and exports run on their own.
Excel and Google Sheets import at the start and export at any time, so the accountant still gets a spreadsheet. Your accounting software receives invoices raised from the app and returns payment status. Google Workspace and Microsoft 365 handle sign-in, and Power BI connects to the live data for anyone who wants their own dashboards.
Any system with an API connects. Click a logo to visit them.
Xero
MYOB
Stripe
Google Workspace
Microsoft 365
Twilio
Shopify
HubSpotAI is optional, and most spreadsheet conversions do not need it. Read how we use AI and where it fits in business process automation.
AI reads a nested formula nobody remembers writing and describes it in plain English, which we confirm against real rows.
It flags the customer entered four ways and the job with an end date before its start.
A manager asks which jobs are overdue this week and gets the list without building a report.
The office works in the web app: entering jobs, checking the roster, running reports and exporting to Excel when someone asks. It is the master sheet with screens instead of a grid.
Staff on site use the mobile forms: update a job, count stock, complete a checklist, log hours. They see their own jobs and nothing else, and what they enter appears in the office at once.
If the sheet tracked work for clients, a portal lets them see the status of their own jobs instead of emailing to ask. All three run on one database, the one that replaced the sheet.
Any business, because these all start as a spreadsheet:
A row per job, a colour per status and a column nobody updates.
QuotingRates on a hidden tab and a formula only one person trusts.
RostersThe weekly grid rebuilt every Sunday night and texted out as a screenshot.
InventoryThe stock count that is right at breakfast and wrong by lunchtime.
Compliance registersExpiry dates nobody checks until an audit.
Client listsFive versions and no record of who called whom.
Quickest start
Most spreadsheets are a job tracker, a quote calculator or a roster in disguise, so we often start from an existing Superstack module and shape it to your columns and words.
Most common
When one workbook runs quoting, jobs and invoicing together, we combine several modules into one platform that keeps those parts linked the way your tabs were, plus the reports the sheet never had.
Fully bespoke
For a sheet that models something unusual, a pricing engine or a scheduling method nobody sells, we build the app from scratch around that logic.
Yes. Every list and report exports to Excel or Google Sheets in one click. The accountant, the board and the person who checks the numbers in a pivot table keep working as before. The difference is that the export is a copy of live data, not the master, so nobody edits it and sends it back as the new truth.
Add up what the sheet costs now: the hours spent merging versions, chasing missing entries and rebuilding reports, and the mistakes that reach an invoice. We put that beside a quoted price during the audit, so you compare a known ongoing cost with a known one-off one. The sheet is often the expensive option. It just never appears on a bill.
It depends on how many tabs the workbook has, how many people use it and how much history comes across. A single-tab tracker is at the quick end. A workbook that runs quoting, jobs and invoicing together takes longer, because those links have to be rebuilt properly. The audit gives you a firm timeline before you commit, and the first working screens arrive early.
Yes. Formulas become rules in the app and macros become buttons or automatic steps, both written down in plain language so they stop being a mystery. We test each one against real rows until the app gives the same answer. Where a formula turns out to be wrong, and some are, you find out during the audit rather than on an invoice.
Whoever you decide. Permissions are set by role: the office edits everything, field staff update their own jobs, the owner alone changes prices, and a client sees only their own records. Every change is logged with who made it and when, so the question of who altered the number is answered in a click. You change access yourself in the settings.
Yes. Most requests we get are to convert Excel to web app NZ teams can share, but a Google Sheet holds the same kind of logic and breaks in the same ways, just with more people editing at once. The move from Google Sheets to app follows the same audit, map, build and import steps, and exports work back to both formats.
Built around the way you work.
Your business shouldn't have to fit someone else's software. Tell us how your business works. We'll show you what Superstack can build around it.
Send us the spreadsheet (blanked out if you like). We'll show you the app it becomes.
We use cookies to see which pages help people. Nothing runs until you say yes. Read the privacy policy.