Two-file reference join

Match the record. Bring over the detail.

Use one or more shared keys to enrich a primary spreadsheet from a trusted reference file, with an explicit policy for existing values.

Private browser-based join

Lookup and merge records

Both files stay local

Primary fileRows to keep or filter

Drop a spreadsheet hereCSV, XLS, XLSX, or ODS Choose file

Reference fileValues to bring across

Drop a spreadsheet hereCSV, XLS, XLSX, or ODS Choose file

Try the sample pair:primary reference