Answer:When you highlight changes as you work, Excel outlines any revisions (such as changes, insertions, and deletions) with a highlighting color. On the Review tab, click Track Changes, and then click Highlight Changes. Select the Track changes while editing. This also shares your workbook check box.
Explanation:
Answer:
Please look for your answer on Stack Overflow, it's way better.
Explanation:
A. Sometimes it is marked by outwards pointing arrows (<= =>) with the reverse (collapsing so as to not take up the whole screen) being in the same spot, marked by inwards arrows (=> <=)
Answer: Click a layer in the Layers panel. To select multiple contiguous layers, click the first layer and then Shift-click the last layer. To select multiple noncontiguous layers, Ctrl-click (Windows) or Command-click (Mac OS) them in the Layers panel.
Explanation:
It allows the technician to modify it
