Convert Multiple CSVs to Excel Tabs
Instantly import multiple CSV files into separate tabs (sheets) inside a single Excel workbook. 100% free and private.
Drag & drop CSV files here
Tap to select CSV files
Max total upload size: 50MB
How to convert CSVs to Excel Tabs
1. Upload CSV files
Drag and drop your CSV files into the upload area. You can add up to 10 files at once.
2. Review & Rename
The tool automatically cleans filenames for valid Excel tabs. Enter a custom name for your final workbook.
3. Download Excel
Click generate and your new Excel file will download instantly. All processing happens securely in your browser.
About this tool
There are many "CSV Combiner" tools on the internet, but most of them work by merging your data vertically stacking the rows of multiple CSV files into one giant list.
CSV Tabs is different. It takes your multiple CSV files and imports each one into its own separate worksheet (tab) within a single Excel (.xlsx) workbook. This is perfect for organizing monthly reports, separating data by category, or keeping distinct datasets together in one file without mixing the rows.
100% Private & Secure
Your data is never uploaded to a server. All processing—parsing the CSVs and generating the Excel file happens entirely within your web browser using JavaScript. This means it's incredibly fast and completely safe for sensitive, confidential, or proprietary data.