CSV to Excel: open a CSV export as a spreadsheet

Use cases

• A bank or credit-card export: transactions with dates and amounts become a table you can total and filter.
• A CRM or e-commerce export: customer names and order lines keep their columns.
• Payroll: hours and rates arrive as a text file and become a worksheet.
• Invoices to clients: an export of line items turns into a sheet you can send on.
• School grade sheets: a list of marks opens as a table for the term report.

What a CSV viewer shows

A CSV viewer reads a text file of separated values and lays it out as a table. Here the separator is detected from the first lines, and quoted fields, line breaks inside a cell and empty values follow the CSV rules. Values that look like numbers or dates are stored as real values, not as text.

That last point matters for a credit-card export: an amount read as text cannot be summed, and a date read as text cannot be sorted. The preview lets you check both before you download the workbook.

How do I open a bank export as a spreadsheet?

A bank or credit-card export usually arrives with a date, a description, an amount and a balance. Open it here and the columns line up, while amounts become numbers you can total or turn into a pivot table by category. If the bank writes a semicolon and a decimal comma, both are detected.

Nothing is uploaded, so a statement with account details stays on your device. Check the first rows, change the encoding if a payee name looks odd, then download the XLSX.

Can I edit a CSV file online?

Yes, but convert it first: click “Open in the editor” after the preview. There you can delete or reorder columns, split names, sort and filter, add formulas, build a chart and download the result as XLSX, ODS, CSV or PDF. Editing the CSV itself would lose formulas and formatting.

How do I keep leading zeros?

A ZIP code, product code or account number such as 00123 looks like a number, so it is read as 123. To keep the zeros, format the column as Text in the editor and paste or re-enter the values. This matters for payroll IDs, store SKUs and invoice numbers.

Limits

• One file at a time, up to 100 MB.
• CSV holds text only: formulas, formatting and several sheets are not saved in it.
• An unusual encoding can be detected wrongly; choose it by hand.
• There is no batch conversion: process files one by one.

Privacy

The file is read and converted in your browser and is not uploaded anywhere. A workbook reaches the cloud only if you click “Save to cloud” and sign in; cloud storage is in the EU/US under GDPR. Bank statements, payroll files and customer lists therefore stay on your device.

On your phone

The converter works in mobile browsers on Android and iPhone. Pick a file from Downloads or a cloud drive, check the preview and download the XLSX. For wide tables and cleanup, the editor is easier on a computer.