v1.1.0

New in 1.1

• Cell borders. Box a block, or rule a line under a heading row. They are
  drawn on a layer behind the text, so a border costs the cell no character
  and no row of its own.
• Bold, from the Layout menu.
• Reads OpenDocument .ods as well as .xlsx and .csv.
• Borders come in with the file, from both .ods and .xlsx.
• Sort a block of columns by its first one, with the rest kept in step.
• Freeze rows and columns.
• The file dialog walks into folders.
• More example workbooks, and a bordered invoice among them.

Borders do not travel back out to .xlsx yet, and .ods is read-only.

What's Changed

• Reset charset on quit by @sandlbn in #3
• Bold on screen by @sandlbn in #4
• Add spreadsheet borders by @sandlbn in #5
• Add ods file reader support by @sandlbn in #6

Full Changelog: v1.0.0...v1.1.0