Simple command line utility for converting .doc & .xls files to any supported format such as Text, RTF, CSV or PDF

xlsxgrep is a CLI tool to search text in XLSX, XLS, CSV, TSV and ODS files. It works similarly to Unix/GNU Linux grep.

Recover Sheet Protection Password for Old Microsoft Excel 2007 Files (.XLS)

XLS to XLSX is an online tool that converts documents created in Microsoft Excel or other spreadsheet processing formats into XLS (Microsoft Excel Spreadsheet) files.

Program on golang for converted from xls files to xml on http server

TSV to XLS is an online tool that converts TSV (Tab-Separated Values) files into XLS (Microsoft Excel Spreadsheet) files.