CSV to XLSX
Create an Excel-compatible file for Microsoft Excel or Google Sheets.
Private spreadsheet conversion
Convert CSV to Excel, privately
Turn comma, semicolon, tab, or pipe-delimited CSV data into a typed XLSX workbook. Your file stays in your browser.
Upload a spreadsheet
Drag and drop a CSV, XLSX, or XLS file. All processing happens locally in your browser with SheetJS.
No upload. No account. Your file stays on this device.
XLSX to CSV
Export spreadsheet data as CSV for use in other systems.
Clean and rename
Remove empty rows and rename columns before export.
Batch conversionConvert several CSV or spreadsheet files locally. A failed file does not stop the rest of the queue.
Batch conversion
Convert several CSV or spreadsheet files locally. A failed file does not stop the rest of the queue.
Up to 20 files and 250 MB total per queue. Two files are processed at a time to limit memory use.
Drop CSV, XLSX, or XLS files here
No files are queued. Source files are never included in ZIP downloads.
A reliable CSV to Excel workflow
Delimora detects CSV structure, lets you verify column types and creates an XLSX workbook that preserves numbers, dates, booleans, and text where possible.
How to use this tool
- 1Choose or drop a CSV file.
- 2Review the delimiter, header row, data types, and preview.
- 3Set the workbook name and download the XLSX file.
Frequently asked questions
Does Delimora upload my CSV file?
No. Parsing, cleaning, and export run locally in your browser.
Which CSV delimiters are supported?
Comma, semicolon, tab, and pipe are supported, with automatic detection and manual override.
Can I preserve leading zeros?
Yes. Set identifier columns such as ZIP codes or product codes to text before export.