Letters

I think it’s naive and unfair to expect every Russian company to make a statement denouncing Putin’s actions. I’ve done my research into Kaspersky and it’s a huge international company with employees worldwide, not some tinpot operation out of a Moscow hacker’s bedroom. There’s never been any evidence that it’s in league with Putin, despite the efforts of intelligence figures to find a link. It’s also an extremely effective antivirus, and has protected all my computers for the past six years. It’s not going anywhere.

Simon Mills

David Ludlow’s ‘How I Use’ on ‘Excel sumifs’ (Issue 626, page 20, pictured below) was worth every penny of my annual subscription to . I created an elaborate banking program in an Excel spreadsheet many years ago which needed an average of 1,000 lines of data per year on the ‘Bank’ sheet. I wanted a monthly analysis for each of the 51 categories of