These pages describe Calamo Pro 0.1 for Windows, Linux and macOS (beta). Download it and try it free for 14 days.
Excel report
Save report… (Ctrl+S) writes one workbook with the sheets Summary, Changed, Added, Removed and Duplicates. The summary lists the counts, the key and settings, the time of the comparison, the largest number changes, and a fingerprint of both files (SHA-256, size and modification time), so a sign-off can show exactly which files were compared.
Marked copy of B
Export → Marked copy of B… (Ctrl+Shift+S) saves file B with every changed cell filled in amber, a status column (changed, with the old value, added, unchanged) and an extra sheet with the summary and the removed rows. When B is an .xlsx or .xlsm workbook, Calamo edits a copy of it, so formulas, formats and other sheets stay; for other files it writes a new workbook with the values. B itself is never overwritten.
New and changed rows of B
Export → New and changed rows of B… saves only the added and changed rows as CSV in B's own format: the same header, delimiter, line endings and encoding. That is the file to import into a shop or another system.
Rows of one file
When browsing one file, Save rows saves the rows a search and filter keep, as CSV in the file's own format, as an Excel workbook, or as CSV parts that each open in Excel. See Saving the rows shown.