v1.2.5

SimpleSpread v1.2.5

Changes since v1.2.4

A native macOS spreadsheet: XLSX native format, CSV import/export,
and a Google-Sheets-level formula engine.

Note: This build is arm64 (Apple Silicon) only.
If Gatekeeper blocks the app, right-click → Open on first launch.

Commit Summary

• Prompt to save unsaved changes on close and quit (a29f017)
• Add right-click menu on row/column headers to insert and delete (c48d16b)
• appcast: SimpleSpread 1.2.4 (dad4a25)