Excel Tables in C# — What "Format as Table" Actually Saves, and How to Create One
Excel's "Format as Table" looks like formatting — a coloured header, striped rows — yet not one cell in the saved file carries a fill. What Excel stores is an object: a range, a header row and a style name. This guide opens up the table part of an .xlsx, explains what the 60 built-in styles really contain, and names the three details that decide whether Excel will open the file at all — then builds a table with filter buttons and a totals row in C# with ReoGrid V5.1.
