Spreadsheet: A table of rows and columns, free for the entry of data, or formulae for calculating actions on those data. Each row or column is said to contain many 'cells' and these cells serve as 'homes' for every shred of information.
You'll need to find a way to make your spreadsheet accessible. You can build a website, which will require paying for a domain, hosting, site security, dealing with an internet transaction service, graphic design, content for the website, marketing your website, Search Engine Optimization, and all the other madness that comes with managing a site.
One user at a time : In the instance where there are a number of people required to work on a spreadsheet, they can only access it when no-one else is working on it.
However, companies can nowadays achieve these goals with less effort and in a cheaper way by using properly designed spreadsheets. The right spreadsheet solutions allow companies of all shapes and sizes to achieve and maintain a prominent position on the market, optimizing and accelerating a wide range of specific business processes and tasks.