Excel Table Merging and Data Preparation Workflow
A live web tool that merges spreadsheet tables horizontally into one combined dataset, ready for reporting and further processing.
merger_app is a live tool that merges spreadsheet tables horizontally to prepare combined datasets.
Screenshots
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 live tool, deployed at mergetable.vercel.app. 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 Vercel
What was built
A web tool that uploads and horizontally merges spreadsheet tables into one prepared, downloadable table for reporting preparation.
Deployment
Deployed on Vercel at mergetable.vercel.app (HTTP 200 verified 2026-09-02).
What can be reused
- Horizontal spreadsheet merge
- Upload-and-prepare data flow
- Reporting data preparation
Boundaries
- Built for horizontal table merging, not general spreadsheet editing
- Do not claim enterprise data governance or production deployment unless later proven
- Client and private data are not included
