01 / Cross-format comparison
Use any supported format pair
Compare Excel (XLS, XLSX, XLSM, XLSB, and their templates), OpenDocument (ODS), and Apple Numbers workbooks in any pairing, such as XLSX against ODS or Numbers against XLSX. A CSV or TSV export can be compared with one sheet of a workbook too: the first sheet by default, or the one you choose under Compare with sheet.
Sheets and cell coordinates provide the shared model, so unrelated workbook container structures do not become the result.
02 / Cross-format comparison
Review stored values in context
Choose a sheet and scan two aligned grids with row numbers and column letters. Selecting a changed cell connects its coordinate to the Differences pane.
Populated rows and columns are virtualized to keep large ranges navigable.
03 / Cross-format comparison
Keep the comparison boundary explicit
Diff Anything compares stored cell values. It does not compare formulas, formatting, charts, macros, or workbook layout.
A clean value comparison is useful evidence for a data handoff, but it does not prove that calculation logic, styling, automation, print setup, or editing behavior survived the format change.