Does the hub support .xlsx and .xls?

Yes. You can upload both modern .xlsx files and older .xls workbooks.

Can I use the same workbook across multiple tools?

Yes. Once uploaded, the workbook powers the tabs for conversion, cleaning, extraction, merging, and duplicate detection.

Is the file uploaded to a server?

No. The workbook is parsed locally in your browser.

RJB World Tools

Excel Tools Hub

Upload one workbook and move between Excel utilities in tabs. Start with Excel to CSV, then clean rows, extract columns, merge sheets, or find duplicates without re-uploading the file.

Upload Workbook

Upload a workbook once, then switch between Excel tools in tabs without reloading the file.

Drop Excel file here

Or use the file picker to browse your workbook.

First row as headers

Include empty rows

Quote fields

CSV delimiter

Workbook

No file loaded

Sheet count

Workbook Status

Track the workbook that will power every Excel tool tab.

Selected sheetNone

Rows0

Columns0

File size0 B

Workbook Tools

Upload once, then switch between the active Excel utilities that use the same workbook state.

Upload a workbook to unlock the tabs

Your workbook tools will appear here.

Upload an Excel file to begin converting sheets to CSV.

File Information

EncodingUTF-8

DelimiterComma

Selected sheetNone

Rows previewed0

How the Excel hub works

One workbook powers multiple Excel utilities in the same session.

Upload a workbook once.
Switch tabs to convert, clean, extract columns, merge sheets, or find duplicates.
Download the result you need without re-uploading the same file.

Planned Excel tools

The hub can absorb more tools without changing the upload flow.

Excel Formula Generator

Excel Formula Explainer

Excel Formula Validator

Excel Column Extractor

Duplicate Row Finder

Remove Empty Rows

Remove Duplicate Rows

Excel Data Cleaner

Pivot Table Helper

Excel Sheet Merger

Trim Spaces

Change Case

Find Missing Values

Null Value Analyzer

Column Profiler

Detect Outliers

Normalize Text

Split Column by Delimiter

Merge Columns

Random Sample Generator

Data Type Detector

Excel to CSV remains the anchor tool

The hub still targets Excel to CSV traffic, but the uploaded workbook now powers several related utilities. That gives the page stronger utility while keeping the SEO entry point focused.

What you can do here

Upload .xlsx and .xls files once.
Switch between Excel utility tabs using the same workbook.
Convert, clean, extract, merge, and find duplicate rows.
Download CSV outputs or all sheets as a ZIP file.

FAQ

Can I convert one sheet only?

Yes. Select the worksheet you want to export or clean.

Does the workbook stay local?

Yes. Everything runs in your browser.

What tools are planned next?

Formula tools, profilers, outlier detection, and more can plug into the same hub.