Merge Excel and CSV files into one review workbook
Bring rows from related spreadsheets together and retain a source-file label for each row. Use the combined workbook to review your GST or sales records in one place.
Free after sign-in. No card or paid plan is required.
Merge Excel and CSV files: quick answers
- Is it free or paid?
- Free after sign-in; no paid subscription is required.
- What can I use as input?
- Up to 10 CSV/XLSX files, 5 MB per file and below 20 MB combined. The first worksheet of each XLSX is read; output is limited to 50,000 rows.
- What will I get?
- One Excel workbook with appended rows and Source file labels. Duplicates are retained; formulas and every worksheet are not recreated.
How it works
Sign in and select up to 10 supported CSV or XLSX files. Use clear column headers and keep the combined file size below 20 MB.
Merge the rows, then inspect the column alignment and Source file labels. The first worksheet is read from each XLSX input.
Download the combined Excel workbook and compare its row count with the original files.
Know what the tool supports
Each input is limited to 5 MB, 50,000 rows and 200 columns; the merged output is limited to 50,000 rows. The tool appends rows and does not deduplicate records, preserve formulas or recreate all worksheets from an input workbook.
Read the supported inputs and outputsCommon questions
Will duplicate invoices be removed?
No. Rows are appended and retain their source-file label. Review duplicates separately before using the combined records.
Are all worksheets from each Excel file merged?
No. The first worksheet is read from each XLSX input. Prepare the intended data there before merging.
Need help with a file? Check supported formats or contact GSTNook support.