Excel Table Merging and Data Preparation Workflow
A deployed portfolio web app that merges spreadsheet tables horizontally to prepare combined datasets for reporting and further processing.
merger_app is a deployed portfolio tool that merges spreadsheet tables horizontally to prepare combined datasets.
Proof assets and links
Problem
Teams often need to combine several spreadsheets into one prepared table before reporting or analysis, which is tedious and error-prone to do by hand.
Context
merger_app is a public portfolio project with a deployed demo. It shows the spreadsheet data-preparation pattern acty.dev builds for reporting and downstream processing.
Inputs
- Two or more spreadsheet tables to merge
Technical approach
The app uploads multiple spreadsheets and merges them horizontally into a single prepared table for export, through an upload-and-fuse flow that aligns the tables before combining them.
Stack
- TypeScript
- React
- Client-side Excel parsing
- Deployed on Replit
What was built
A web tool that uploads and horizontally merges spreadsheet tables into one prepared, downloadable table for reporting preparation.
Deployment
Deployed as a portfolio web app at excelm.replit.app (verified reachable 2026-06-03).
What can be reused
- Horizontal spreadsheet merge
- Upload-and-prepare data flow
- Reporting data preparation
Boundaries
- Workflow proof only
- Do not claim enterprise data governance or production deployment unless later proven
- Client and private data are not included
