FileMerger – Instant merging of Excel and CSV files with preserved formatting

Summary: FileMerger merges multiple Excel and CSV files instantly while preserving headers, formatting, and formulas. It automatically handles messy files and inconsistent data without installation or setup, operating directly in the browser.

What it does

It merges Excel and CSV files by maintaining original structures and resolving mixed or inconsistent data automatically through a simple upload process.

Who it's for

Analysts, teams, and users who need to combine multiple spreadsheet files without manual copy-pasting.

Why it matters

It eliminates the manual, error-prone process of merging spreadsheets while preserving data integrity and formatting.