Deepcalc: Spreadsheet, XLSX

Deepcalc is a spreadsheet for your iPhone and iPad. It opens Excel and csv files as they are, and keeps every change you make. - Open, edit and save .xlsx and .csv files from Files, Mail or any app. The original is kept before the first save. - It sees your tables: headers, inputs and results are outlined as you type, and one tap makes a block a real table. - It says what comes next: select a column of numbers beside its months and the next three appear, ready to accept. - Every change kept: history for every cell, branches to try an idea, and a way back to any earlier version. - Comments on a cell, a range, a column or a row, with replies and Resolve. They stay in the .xlsx, so Excel reads them too. - The panel: Cell, Check, What If, Insights and Changes. A column on iPad and on iPhone Duo, a sheet on iPhone. - A formula key row above the keyboard: =, brackets, operators and the functions you reach for. - Made for iPhone Duo: the same sheet closed, open or folded like a book. No account and no sign-in. Your files stay on your device.