Libre Ofice [best] Official

Kline got wind of it. He flew in on a private jet and demanded a meeting with the Prime Minister. “Open source is a security risk,” he said. “You’ll have no support. No one to call at 3 a.m. when the budget spreadsheet crashes.”

That was the cost of the new software licenses. libre ofice

A dedicated tool for creating and editing complex mathematical formulas within your documents. Key Features and Capabilities Kline got wind of it

Elena nodded. “The archives use complex macros. They’ll break.” libre ofice