input question: Fix spacing: WindowsPCspurchasedbyinstitutionsforuseinK-12was60.8percentinQ42017,downfrom66.3percent,Futuresourcefound.Android-baseddeviceswereat20.7percentshare,upfrom14.6inthepreviousquarter.

output answer: Windows PCs purchased by institutions for use in K-12 was 60.8 percent in Q4 2017, down from 66.3 percent, Futuresource found. Android-based devices were at 20.7 percent share, up from 14.6 in the previous quarter.

input question: Fix spacing: Imercohascompletedaveryextensivetrainingprogrammeforitssalesstaff.Theprogrammewasbasedonacombinationoftrainingdayseverythreemonthsformorethan600salesstaff,followedupbymorethan7,500customerexitinterviewseverythreemonths.

output answer: Imerco has completed a very extensive training programme for its sales staff. The programme was based on a combination of training days every three months for more than 600 sales staff, followed up by more than 7,500 customer exit interviews every three months.

input question: Fix spacing: InstallationandmaintenanceofthesystemNASSAT:NASSAThasgainedconsiderableexperienceinworkingwithtrainoperators.

output answer: Installation and maintenance of the system NASSAT: NASSAT has gained considerable experience in working with train operators.

input question: Fix spacing: Youcanevenselectallfilesbyjustclickingon"Markall"optionwhichyoucanseeonlefthandsideofwindow

output answer:
You can even select all files by just clicking on "Mark all" option which you can see on left hand side of window