Microsoft is looking to improve the way SharePoint Online customers upload and store documents in the platform as enterprises ramp up their use of Office 365's cloud collaboration service.

Over the coming weeks, Microsoft will roll out a set of changes to Office 365 targetted at SharePoint Online users, including increasing from 250MB to 2GG the size of files that people can upload to their individual SkyDrive Pro repositories and to SharePoint Online team site document libraries, the company said yesterday.

The enhancements are in response to companies' increased use of Office 365, according Microsoft's Mark Kashman. "Users are uploading more documents to SkyDrive Pro, teams are building numerous team sites to work with internal teams as well as with external customers and partners, and companies are establishing their corporate intranet sites," he said.

In addition to lifting the size limit on individual uploads, Microsoft has expanded the types of files that can be uploaded by adding .exe and .dll files.

Another change will be to increase from 3,000 to 10,000 the number of site collections - groups of websites organised hierarchically - that an Office 365 Enterprise customer can create. This improvement will not be applied to Office 365 Small Business and Midsize Business customers.

Microsoft is also prolonging the time that discarded documents remain in SharePoint Online recycle bins from 30-90 days to give users more chance to recover these items. In addition, retaining multiple versions of Office 365 documents will be on by default on newly created SkyDrive Pro libraries.

Yesterday's announcement comes shortly after Microsoft increased SkyDrive Pro storage from 7GB to 25GB and doubled the size of Exchange Online mailboxes to 50GB.

Microsoft is in a dogfight with Google, as Office 365 and Google Apps battle for customers large and small that are looking to move their email, calendaring, office apps and other collaboration and productivity tools to a vendor-hosted public cloud service.