What this does

Compare two versions of the same dataset and see exactly what changed. Pick a key column (like email, id, or sku), and Toolenza groups every row by that key across both files, then highlights:

• Added — rows present only in the new file
• Removed — rows present only in the old file
• Changed — rows where the key matches but other columns differ
• Unchanged — rows that match exactly

When to use it

• Reconciling a customer list export from this month vs. last month
• Spotting which products were added or discontinued in a price list
• Auditing a colleague's edits to a shared spreadsheet
• Diffing two database exports