CSV to Excel
Convert a CSV file to Excel (.xlsx) in your browser. Download a real spreadsheet — nothing is uploaded.
Excel analyzer
Inspect an Excel sheet for row and column counts, inferred types, and file size in your browser.
Drop an Excel file here or click to choose
Analyzed locally — nothing is uploaded
How to use Excel analyzer
Inspect an Excel sheet for row/column counts, inferred types, and size.
Everything runs locally in your browser — your files are never uploaded to a server.
Excel analyzer FAQs
How do I analyze an Excel spreadsheet online?
Drop an Excel file, choose a sheet, and review row and column counts, inferred types, and file size in your browser.
Is the Excel analyzer free?
Yes. Every Excel and CSV tool on ReallyUseful.Tools is free to use, with no account or subscription required.
Are my files uploaded?
No. Files are processed in your browser on this device. Nothing is uploaded to our servers.
Do I need Microsoft Excel installed?
No. These tools run in a modern web browser, so you do not need Microsoft Excel or desktop spreadsheet software installed.
More Excel/CSV
Excel to CSV
Convert Excel .xlsx or .xls to CSV in your browser. Choose a sheet and delimiter, then download.
CSV viewer
Open and browse a CSV in a paginated table in your browser. No upload — view large files locally.
Merge CSV files
Combine multiple CSV files into one in your browser. Rows are stacked and headers aligned by name.
CSV to XML
Convert CSV rows into structured XML in your browser. Each row becomes an element — nothing is uploaded.