## Limitations @:txt.calc has some limitations: - calcs will be **deleted after {days} days of inactivity** (no access, no modification), in order to avoid enlargement of our database indefinitely - they can only contain a maximum of **{rows} rows** - it is not possible to create multi-sheet layers or import OpenDocument or Microsoft Office files - for [security reasons](https://contact.framasoft.org/en/faq/#calc-delete), we are unable to remove calcs upon request This service is offered subject to acceptance of our terms and conditions and may be moderated according to our moderation policy.
A “calc“ is an online collaborative spreadsheet. Your data is automatically saved on the internet, and your friends can collaborate on the document at the same time (just provide them the address).<br /> View all changes in real time! Work together on your inventories, your surveys, your content, your meetings and much more!<br /> Want a [demonstration]({link})? ### Main features - Collaborative editing in real time - Permanent and automatic backup - History - Cell annotations - Many functions available (statistics, financial, mathematics, text, etc.) - Basic graphs (histogram, lines, points) - HTML or CSV export
