u/Sergey_Zarubin

If you are tired of guessing why your formulas are failing, our team has prepared a guide breaking down the 7 most common spreadsheet errors and how to actually fix them.

Here is a quick look at what the guide covers:

• What triggers the classic errors: #NULL!, #VALUE!, #NAME!, #NUM!, #DIV/0!, #N/A and #REF!
• Practical ways to clean up messy imported data (which is usually the hidden culprit behind #VALUE!)
• How to use functions like TRIM(), VALUE(), IFERROR() and IFNA() to handle edge cases before they break your sheet

It is a great refresher whether you are just putting together a basic budget or building complex dashboards. Instead of undoing everything and starting over, this guide helps you read the errors as clues so you can fix them in seconds.

You can check out the full guide on our blog.

What is the spreadsheet error that drives you crazy the most? Let us know in the comments!

You can meet our team at other events around the globe. Learn more about the next ONLYOFFICE events on our website.

AI Expo Korea 2026 is one of the largest and most recognized AI exhibitions in Korea, bringing together around 350 exhibitors, 600 booths, and up to 50,000 visitors at COEX Hall A in Seoul from May 6–8, 2026. The event focuses on AI solutions, infrastructure, platforms, highlighting the latest advances in generative AI, large language models and robust AI infrastructure for businesses and developers.

ONLYOFFICE is excited to participate in AI Expo Korea 2026 as an exhibitor. Come and discover our product portfolio, partnership opportunities and the latest offers at booth P18. See you there!

Digital Tech Show, the largest showcase of solutions for digital business transformation in Brazil, is back in 2026, even more comprehensive, integrated and strategic. The event is taking place on May 5 and 6, bringing together more than 100 exhibiting companies and around 5,000 professionals from the fields of technology, innovation and business at the Frei Caneca Convention Center in São Paulo.

At Digital Tech Show 2026, our team is exhibiting at booth 4S to showcase our open-source document collaboration solutions for businesses of all sizes.

During the shift to home-based learning several years, many families faced challenges managing education. ARK ACADEMY turned to ONLYOFFICE DocSpace to deliver structured lessons and support, helping both parents and teachers stay organized and connected.

ARK ACADEMY needed a cost-effective way to create, edit and collaborate on documents without added complexity. They wanted a solid alternative to Microsoft 365 that was easy for everyone to use.

ARK ACADEMY chose DocSpace after comparing it with LibreOffice because it offers an easy-to-use interface, strong compatibility with Office formats and a single location for organizing and collaborating on lesson materials:

• Easy to use for parents, students and teachers
• Full compatibility with existing Office files
• All lesson materials organized and accessible in one place

With DocSpace, ARK ACADEMY made lesson sharing and document collaboration much easier for everyone involved.

Check out the full use case on our blog.

Ever find yourself wishing your document editor could do just a little more? The good news is that ONLYOFFICE makes it easy to create custom plugins that fit your workflow. Whether it’s automating repetitive tasks, pulling data from external sources or even integrating AI for smarter text processing, the possibilities are endless.

If you’ve ever thought, “I wish my editor could just do this for me,” now’s the time to turn this idea into reality. Check out this blog post and find out what you need to get started with custom plugins.

What’s the one feature you’d love to add to ONLYOFFICE? Share your feedback in the comments!

Join your webinar today and explore how to use ONLYOFFICE tools for custom development and seamless integrations.

What are the must-have features for a modern document editor? Seamless collaboration, format compatibility, cloud integration, advanced customization, cross-platform availability, AI-powered tools and security are what many users expect today.

Whether you're building a document editor from scratch or integrating a solution like ONLYOFFICE Docs, we offer a full breakdown of the key features in this blog post.

What features do you think are essential in a document editor? Let’s discuss!

Good news from Brazil! Mauna Linux, a free GNU/Linux project designed to provide an out-of-the-box operating system for both newbies and experienced users, has released version 25.2.

One of its updates is the availability of ONLYOFFICE Desktop Editors 9.3.1, the latest version of our desktop office suite. Now Mauna Linux users can enjoy all the newest features, including multipage view in documents and integration with Box and Dropbox.

Read this blog post to learn more about Mauna Linux and ONLYOFFICE Desktop Editors.

The MiniDebConf is a series of meetings organized by local Debian users and enthusiasts. Its purpose is to promote face-to-face interaction, production of videos and online broadcasts, and contribution to the Debian project. Throughout the year, MiniDebConf events are organized around the world to motivate new and experienced contributors locally.

MiniDebConf Campinas 2026 is the seventh edition of the largest Brazilian meeting of Debian users and developers that will take place from April 23rd to 25th, 2026, at the State University of Campinas. The conference will include talks, workshops, sprints and social events.

ONLYOFFICE is one of the Gold sponsors of the event.