With Excel File Viewer you can open, view and save/export/convert MS Excel workbooks on any computer, even if you dont have the MS Excel installed.
Additionally your may load the Lotus 1-2-3 and QuattroPro spreadsheets. This software dont use any external libraries (no MS Excel/Office, no BDE, no ODBC, no ADO etc) and you may run this tool on computer without any additional setup/install. You may view the data contents from any sheet in xls-file and to trace the full internal (system) information about stored BIFF-records within xls-file. All formats of xls/xlsx/xlw, wq/wkq and wk/wr/123 files supported (including Far-East and Middle-East versions).

The license of this software is Free Trial Software, the price is $20, you can free download and get a free trial.