Office suites are increasingly similar on paper, but the actual productivity gaps between them often stem from specific functions that most users are unaware of or underutilize. Keyboard shortcuts, built-in automations, AI assistants: each tool hides concrete levers that reduce the time spent on repetitive tasks. Measuring these gaps allows for the selection of the right suite and, above all, to derive tangible benefits in daily use.
AI Assistants in Office Work: Real Gains but Unequal Depending on the Task
Publishers promise spectacular productivity gains thanks to the AI integrated into their suites. Independent measurements strongly nuance this claim.
An evaluation by the UK Department for Business and Trade, published in August 2025, found significant improvements for report synthesis, but poorer results in accuracy and duration for certain data analyses in Excel. AI speeds up the writing and summarizing of long documents; however, it can slow down an experienced user on complex analytical tasks.
A randomized field study involving over 7,000 workers in 66 companies measured a decrease in time spent on emails, but no detectable change in time spent in meetings. AI can shift work time rather than reduce the overall workload. This finding invites targeting tasks where the assistant provides a verified gain, rather than activating it everywhere.
To delve deeper into the features of each suite and compare their modules, several French-language resources detail the available options, notably the Blog Tech FR site which covers common office tools.
| Type of Task | Gain Observed with AI | Identified Limitation |
|---|---|---|
| Report Synthesis | High (significant reduction in time) | Risk of loss of nuance on technical documents |
| Data Analysis (Excel) | Low to negative | Poorer results in accuracy and duration (UK evaluation, August 2025) |
| Email Management | Moderate (decrease in processing time) | No effect on time in meetings (randomized study, 7,000 workers) |
| Presentation Creation | Moderate | Generic result often requiring manual revision |
Native Shortcuts and Automations: Underutilized Office Productivity Levers
Before investing in an AI subscription, the functions already present in office suites represent a considerable time-saving resource. Most users only utilize a fraction of their daily tool’s capabilities.
Keyboard Shortcuts to Know by Suite
In Microsoft 365, the Alt key combined with a menu key allows access to any function without leaving the keyboard. In Google Workspace, Ctrl+/ displays the complete list of shortcuts in each application. These gestures may seem trivial when taken in isolation, but over a full workday, eliminating back-and-forth between keyboard and mouse significantly reduces fatigue and processing time.
Built-in Automations
Excel macros remain one of the most powerful automation tools in office work. Recording a macro to format a weekly report or clean a dataset avoids repeating the same clicks each week. Google Sheets offers an equivalent via Apps Script, which allows for the automation of sending notifications or consolidating data across multiple sheets.
- Document templates (Word, Docs, Calc) with predefined styles ensure uniform formatting and eliminate the time spent on manual formatting for each new file.
- Sorting rules and automatic filters in spreadsheets allow for isolating relevant data in a large file in seconds, without complex formulas.
- Suggested replies and smart filters in integrated messaging (Outlook, Gmail) reduce the processing time for common emails, provided they are set up once.
These functions require no additional subscription. They demand an initial investment of a few hours of learning, but the return is measurable from the first week of use.
Compliance and Social Dialogue: A French Constraint Affecting Tool Choice
In France, deploying an office tool that integrates AI is not solely a technical decision. Recent decisions have indicated that replacing or deploying software that includes AI may require prior consultation with the social and economic committee when the tool significantly alters tasks or working conditions.
This obligation for social dialogue adds a delay and complexity that companies often underestimate. A migration project to a suite with an AI assistant can take several additional months if the CSE requests an assessment of the impact of automation features.
At the European level, the AI Act imposes transparency obligations on AI systems. Compliance becomes a full-fledged productivity skill: choosing a tool that adheres to these regulatory frameworks avoids future blockages and costs of retroactive compliance.
Criteria for Choosing an Office Suite for Productivity
The right tool depends less on the brand than on the dominant usage. A professional who spends most of their time in spreadsheets has different needs than a writer or project manager.
- For data management and analysis, Excel’s functional depth (pivot tables, Power Query) remains hard to match. Google Sheets is suitable for moderate volumes and real-time collaborative needs.
- For collaborative writing, Google Docs offers superior co-editing fluidity compared to Word Online, but Word remains more comprehensive for advanced layout and long documents.
- For managing cross-functional projects, tools like Notion or Trello complement the main office suite without replacing it. They structure task tracking where a spreadsheet quickly becomes unreadable.
- For organizations subject to budget constraints, LibreOffice covers basic functions without licensing costs, with reasonable compatibility on Microsoft formats.
The most discriminating criterion remains the learning time relative to daily gain. A powerful suite that is poorly mastered produces less than a simple tool used to its full capacity. Investing a few hours in training on the advanced functions of the existing tool often yields a better return than migrating to a new platform.
Available data shows that gains in office productivity come more from mastering existing functions than from adding additional technological layers. Integrated AI provides real benefits for certain targeted tasks, but it does not compensate for a lack of knowledge of shortcuts, automations, and native templates.
