• Health & Fitness, Fitness Equipment
• XLSHTML file structure
• April 18, 2026

An XLSHTML file is best understood as an Excel spreadsheet that has been saved in a web page format rather than in a normal native Excel workbook format like .xls or .xlsx. Instead of keeping the file strictly as a standard spreadsheet, Excel converts the visible sheet into HTML, which is the language used to build web pages. This means …