Excel Online Data Visibility Fix

I depend on a long-standing Excel workbook for daily data entry and finance tracking. Everything behaves as expected in the desktop app, yet the moment I open it in Excel for the web a chunk of the information—entire rows and sometimes whole columns—goes missing. The very first priority is to make every piece of data visible and editable online exactly as it appears on the desktop version.

Once that is solid, I would also like the existing filters checked, because I suspect the visibility problem may be tied to tables, named ranges, or filter definitions that the online version interprets differently.

You’ll hand back a clean workbook that:
• shows all historical and future data in Excel for the web without loss or distortion
• retains all original formulas, formatting, and filter logic
• stays fully compatible with the desktop app so nothing breaks for local users

When you reply, highlight similar Excel-to-web fixes you’ve completed and any deep-dive experience with table structures, PivotTables, Power Query, or data validation that might be relevant.