How do I compare files in Windows 10?
Start Windiff.exe. On the File menu, click Compare Files. In the Select First File dialog box, locate and then click a file name for the first file in the comparison, and then click Open. In the Select Second File dialog box, locate and then click a file name for the second file in the comparison, and then click Open.
How do I compare files for changes?
Open one of the two versions of the document that you want to compare. On the Review menu, select Compare Documents. In the Original document list, select the original document. In the Revised document list, browse to the other version of the document, and then select OK.