Validate Column Rules
Check a spreadsheet column against a rule and identify values that fail validation.
Select a column and validation rule, preview invalid rows, then add a Validation Status column 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
Validate one column against a clear rule. The source values are not changed.
Undo and Redo controls are available with the current grid.
Column validation analysis
Invalid row preview
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.