Remove Duplicate Columns
Find and remove duplicate spreadsheet columns while preserving the header and unique columns.
Compare complete columns, preview duplicate groups, then remove redundant columns as one reversible step.
Paste Data
Copy cells from Excel or Google Sheets and paste them here.
Import a spreadsheet file
Import CSV or XLSX data into the current dotXLS workspace. Files are processed in your browser.
Tools
The first row is protected as the header. Complete columns are compared using the selected matching rules; retained cell values are never rewritten.
Undo and Redo controls are available with the current grid.
Duplicate column analysis
Columns scheduled for removal
Preview only. The current worksheet is unchanged.
Paste spreadsheet data to create your workspace.
Name Department Amount Ahmed Sales 1200 Maria HR 950
Your data stays in this browser tab and is not sent to WordPress.
Export result
Download the current workspace data after editing or cleaning.