I've decided.
After pissing off Antonio Linares,
I want to piss off BillGates and especially Microsoft.
I've decided to create an Excel-style spreadsheet, but I didn't use Xbrowse. I reprogrammed it entirely from scratch, and this is the result. It recognizes the formula with the "+" sign and saves it in a json file.
Obviously, I created an object class and it is on working.
New release
New version
✓ Formula Bar
✓ Cell Picking
✓ Ranges A1:A10
✓ Math Functions
✓ Text Functions
✓ Date Functions
✓ #NAME?
✓ Quick RecalcAll
✓ Copy/Paste
✓ Variable-Width Columns
✓ Variable-Height Rows
✓ Popup Menu
✓ Hide/Unhide Rows and Columns
New release
features made
✓ Resize columns with visual preview
✓ Resize rows with visual preview
✓ Font
✓ Font size
✓ A+
✓ A-
✓ Bold
✓ Italic
✓ Underline
✓ Text color
✓ Background color
✓ SUM() formulas
✓ Formulas like =B11-B12
✓ Range like A2:A10 or A1;A2;A3
✓ Vertical cell dragging up and down
✓ RecalcAll()
✓ Toolbar synchronized with the cell
✓ Save changes on exit