Excel's Next Corner of Selection (Ctrl+., Control+. on a Mac) moves the
active cell clockwise to the next corner of the selected area (top-left,
top-right, bottom-right, bottom-left) and keeps the area selected; the
new active cell is also the anchor, so Shift+arrows then move the
opposite corner. GridCraft had no such command.
New command selection.nextCorner (Selection::next_corner) bound to
Ctrl+. on every platform. A one-row or one-column area goes end to end;
a single cell stays where it is.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The default still reads a string with typed input, which is en-US: "05.04.2026"
from a dd.mm.yyyy export became 4 May, "2.500" became 2.5, and the command said
nothing (#2255). `parse: false` (PR #2267) lets a caller keep the text, but a
script that does not pass it still cannot notice the change.
The result now names them: `converted` lists the strings typed input read as a
number (dates and times included), a boolean or an error, with the cell, the
input and what the cell shows, and `convertedCount` is the total. It is capped
at 20 entries and 32 characters per string, so a big write does not put a second
copy of its data in the result. A string written as a formula (`=1+1`) and a
leading apostrophe are not conversions. `cells` and the default reading of the
values are unchanged.
Two `parse: false` fixes from the review of #2267:
- An empty string clears the cell, as `null` and the default path do. Storing an
empty text cell left a cell that is not blank: `values: [["", ""]]` gave
COUNTA 2 and ISBLANK FALSE.
- MCP `write_range` takes `parse`, so an agent can opt out too; the tool's
description and docs/mcp.md say so.
Tests: the issue's examples under both settings, the report and its cap, the
empty string, and an XLSX save/reopen that keeps the text as text and the
default's date as a date.
