Audit the workbook
We identify formulas, macros, linked files, owners, reports, exceptions and the decisions the workbook supports.
Replace your Excel workflow with a secure internal web app.
Hire Myriah to replace operational Excel files with a secure internal application. Preserve validated formulas and business rules while adding multiple users, permissions, approvals, audit history and reliable reporting.
IN BRIEF
What does Myriah deliver?
Hire Myriah to replace operational Excel files with a secure internal application. Preserve validated formulas and business rules while adding multiple users, permissions, approvals, audit history and reliable reporting.
- BEST FIT
- Several people edit or copy the same operational workbook
- FIRST STEP
- Map one valuable workflow and confirm the smallest useful release.
- STARTING INVESTMENT
- Focused Excel replacement projects start from €3,000
- TYPICAL DELIVERY
- Typical first release: 4 to 8 weeks
HIRE MYRIAH FOR THIS
Standard software handles the common workflow. We build the operational layer your business is missing.
STARTING INVESTMENTFocused Excel replacement projects start from €3,000
DELIVERY WINDOWTypical first release: 4 to 8 weeks
Request a free workflow assessment →EXCEL MIGRATIONLIVE
LEGACY SYSTEMHIGH RISK
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TARGET ARCHITECTURE
Modular platform
1Secure identity
2Business API
3Modern interface
4Monitoring
MIGRATION 68%System operationalOne controlled workflow
TRY THE WORKFLOW
See a spreadsheet become an operational application.
Import a CSV or XLSX file, review automatic data checks, apply suggested fixes and switch between operations, technician and client permissions.
Open the interactive Excel demo →01Import02Validate03Operate
EXCEL TO WEB APP DEVELOPMENT COMPANY
Hire Myriah to replace the workflow, not merely redraw the spreadsheet.
A useful Excel replacement preserves the business logic people trust while removing copied files, hidden ownership and manual reporting. The result is a secure internal application designed around how the operation actually works.
01Multiple employees need current records
02Approvals happen outside the file
03Reports require manual rebuilding
04Customers need a safe portal view
See what changes operationally.
Shared workbook
Current versionUnclear
Simultaneous usersRisk of conflicts
PermissionsFile-level
Change historyIncomplete
Automated handoffsManual exports
A controlled path from workbook to production.
We do not start by deleting the spreadsheet. We document it, test the replacement against it and preserve an archive during acceptance.
Prototype the workflow
The spreadsheet structure becomes a clickable interface so users can validate records, actions and terminology before development.
Build and migrate
We add authentication, permissions, validation, audit history and the agreed integrations, then rehearse the data migration.
Reconcile and launch
Totals, sample records and reports are checked against the original workbook before users move to the application.
WHAT A FIRST RELEASE CAN INCLUDE
More than an Excel wrapper.
The scope should solve one valuable workflow completely. Additional modules can follow after adoption and results are proven.
Concurrent access
Several people work from current records without creating conflicting copies.
Role permissions
Employees, managers and clients see only the records and actions they need.
Audit history
Important changes record the user, time and previous state.
Integrations
Accounting, CRM, email and operational platforms can exchange controlled data.
Structured reporting
Reports use validated records instead of manually rebuilt worksheet ranges.
Controlled migration
Existing records are cleaned, mapped, rehearsed and reconciled before launch.
What affects the investment?
One defined workflow, secure users, structured records, validation, reporting and controlled migration.
Timing depends on workbook complexity, stakeholder availability, historical data and required integrations.
Complex macros or formulas
Several user roles
Large historical data sets
Multiple integrations
Offline or mobile requirements
Not every workbook should become custom software. If the process is temporary, used by one person or changes every week, improving the spreadsheet may be the more sensible investment.
Explore the decision before requesting a proposal.
GUIDE
How to replace Excel with an internal tool
Warning signs, first-release scope, migration and adoption.
INTERACTIVE DEMOSee an Excel workflow become operational software
Import, validate and operate fictional records with different permissions.
PROJECT PLANNERDefine the workflow worth replacing first
Turn the current problem into a focused starting scope.
BEYOND A FEATURE LIST
A service shaped around the outcome.
Every engagement is scoped around one valuable operating result, the people responsible for it and the evidence that will prove improvement.
Understand what creates the risk.
A business-critical spreadsheet is rarely just a file. It contains formulas, status conventions and operating knowledge, while approvals happen in email and employees maintain their own copies. As more people depend on it, the company loses control over versions, access, changes and reporting. The development problem is not converting cells into screens. It is discovering the full workflow around the workbook without losing the rules the business already trusts.
Design the complete working system.
Myriah audits the workbook, linked files, formulas, macros, users and manual handoffs before designing the application. The first release creates one shared source of truth with structured records, validation, role-based queues, approvals, audit history and dependable reports. Existing calculations are tested against representative examples. Integrations are limited to the systems the workflow genuinely needs, keeping the first release focused and easier for employees to adopt.
Deliver safely and leave you in control.
Migration begins with a clean representative data set and a reconciliation plan. Users test ordinary work, exceptions and reports before production. The original workbook can remain available as a read-only archive during acceptance, with clear ownership of corrections and a rollback path. After launch, the team measures time spent preparing reports, error frequency, approval delay and adoption. Further spreadsheets are replaced only after the first workflow has earned operational trust.
WHEN THIS FITS
A strong option when the problem is valuable and specific.
- Several people edit or copy the same operational workbook
- Hidden formulas or manual reports create business risk
- The workflow needs roles, approvals, history or integrations
WHAT DELIVERY CAN INCLUDE
A complete path from clarity to working software.
Spreadsheet and formula audit
Workflow prototype and data model
Role-based access and validation
Approval queues and audit history
Controlled data migration and reconciliation
Exports, reporting and documentation
Built to work with the rest of your business.
Excel, Microsoft 365, Google Workspace, accounting platforms, CRM, document storage, email and custom APIs.
Choose the smallest solution that controls the real risk.
Preserve the business logic that matters while replacing file copies, hidden risk and manual control.
OPTIONBEST FITDECISION
OPTIONKeep Excel
BEST FITOne owner and low operational risk
DECISIONFastest and least expensive
OPTIONImprove the workbook
BEST FITStable calculations with a controlled user group
DECISIONUseful before software investment
OPTIONBuild a web app
BEST FITMultiple users, approvals, audit history or integrations
DECISIONCreates one controlled operational system
LIMITATIONS
When custom development is not the right first move.
- A personal calculation sheet does not need a custom application.
- Unclear formulas and inconsistent historical data must be resolved before migration.
- The workbook remains available as a read-only archive until acceptance is complete.
SUPPORTING EVIDENCE AND TOOLS
Evaluate the decision before you commit.
What to know before requesting a proposal.
Can you convert our Excel spreadsheet into a web application?
Yes, when the spreadsheet controls a repeatable business workflow. We first document formulas, users, approvals, exceptions and reports, then design a controlled application around the process.
Can you preserve our formulas and business rules?
Yes. Important formulas, validations, macros and manual decisions are documented during the workbook audit. They are then translated into visible, testable application rules rather than copied blindly.
Will we lose our spreadsheet data?
No. Migration is rehearsed with a representative data set, totals are reconciled and original files can remain as read-only archives during acceptance.
How much does Excel to web app development cost?
A focused first release starts from €3,000. Complex macros, historical cleanup, several integrations or advanced reporting increase the scope.
How long does it take to replace an Excel workflow?
A focused first release typically takes four to eight weeks after scope is confirmed. Large historical migrations, several departments or external system approvals can extend delivery.
Do we own the finished Excel replacement application?
The proposal defines ownership, accounts and handover clearly. Myriah projects are designed so the client controls its business data and production environment.
Not sure what the first release should contain?
Use the Myriah Project Planner to evaluate the workflow, users, integrations and risks before booking a call.
Open the project planner →RELATED DEVELOPMENT SERVICES
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