Word
XLS files
DOCX and DOC files, a format by Microsoft, is widely used for word processing. It stores text, images, and formatting universally. Its user-friendly interface and extensive functionality contribute to its dominance in document creation and editing
XLS ( Excel spreadsheet) is an older file format used for storing spreadsheet data. Although largely replaced by XLSX, XLS files can still be opened and edited in Excel. They contain tabular data with formulas, charts, and formatting.