Text: the network activity icon was used by microsoft in pre-windows 7 operating systems to indicate network activity in the windows system tray.

Correct capitalization: The network activity icon was used by Microsoft in pre-Windows 7 operating systems to indicate network activity in the Windows System Tray.

Text: this allows the intelligence of windows to decide the correct software application to open your ucn file.

Correct capitalization: This allows the intelligence of Windows to decide the correct software application to open your UCN file.

Text: but those upon the rock, those who when they hear receive the word with joy; and these have no root, who believe for a time, and in time of trial fall away.

Correct capitalization: But those upon the rock, those who when they hear receive the word with joy; and these have no root, who believe for a time, and in time of trial fall away.

Text: unsure about which type of m21 file you have? do you want to know exactly what it is, who created it, and how to open it?

Correct capitalization:
Unsure about which type of M21 file you have? Do you want to know exactly what it is, who created it, and how to open it?