viest

Generate, review, or debug XLSX export code using the native xlswriter PHP extension and Vtiful\Kernel APIs; use for download responses, queued exports, large constMemory exports, formatting, formulas, images, and worksheet options.

Generate, review, or debug XLSX import code using the native xlswriter PHP extension and Vtiful\Kernel APIs; use for uploaded spreadsheets, row streaming, validation, data mapping, skip flags, nextRow, nextCellCallback, and database persistence.