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Reject A Corrupt Or Unreadable Excel File In PHP Using PHPSpreadSheet IOFactory::identify() reports which reader would try, not that the file will actually load. This article manufactures four broken workbooks, watches the usual approach die on the one that… August 10, 2026 · PhpSpreadsheet Print Gridlines In Excel Files In PHP Using PHPSpreadSheet Excel keeps two separate switches for gridlines, and confusing them is why a checklist that looks ruled on screen prints as words in white space. This article sets… August 9, 2026 · PhpSpreadsheet Add Strikethrough, Superscript And Subscript Text In Excel Files In PHP Using PHPSpreadSheet Strikethrough, superscript and subscript all live on the same object – the cell’s Font – so they are one lesson rather than three. This article sets each of… August 9, 2026 · PhpSpreadsheet Download Several Excel Files As One ZIP In PHP Using PHPSpreadSheet Sending one workbook to the browser is straightforward; sending five is not. This article builds several spreadsheets, collects them with PHP’s ZipArchive, and streams the finished archive as… August 9, 2026 · PhpSpreadsheet Set Sheet View Options In Excel Files In PHP Using PHPSpreadSheet Zoom level, the selected cell and right-to-left layout decide what a reader sees in the first second after double-clicking your file, without changing a single value inside it.… August 8, 2026 · PhpSpreadsheet Set The Worksheet Tab Color In Excel Files In PHP Using PHPSpreadSheet Once a workbook holds more than three or four sheets the tab strip becomes the navigation, and coloring it is one call per sheet with getTabColor()->setRGB(). Two things… August 8, 2026 · PhpSpreadsheet Rotate Text In A Cell In Excel Files In PHP Using PHPSpreadSheet Tilting a header row 45 degrees is a single call to getAlignment()->setTextRotation(), and it saves you from either stretching every column to the width of its title or… August 8, 2026 · PhpSpreadsheet Add Data Bars, Color Scales And Icon Sets In Excel Files In PHP Using PHPSpreadSheet Data bars, color scales and icon sets are the graphical conditional formats: the bar filling each cell, the red-to-green heat map, the row of traffic lights. They use… August 7, 2026 · PhpSpreadsheet Sort Rows Before Writing An Excel File In PHP Using PHPSpreadSheet PhpSpreadsheet has no sort() method and never has, because a worksheet is a grid of cells rather than a list of records. You sort the PHP array first… August 7, 2026 · PhpSpreadsheet