See the steps below.
Explanation:
On the Page Layout tab in Excel or the Design tab in Word, click Colors, and then click Customize Colors.
Click the button next to the theme color you want to change (for example, Accent 1 or Hyperlink), and then pick a color under Theme Colors.

To create your own color, click More Colors, and then pick a color on the Standard tab, or enter numbers or select a color on the Custom tab.
In the Sample pane, preview the changes that you made.
Repeat this for all the colors you want to change.
In the Name box, type a name for the new theme colors, and click Save.

See the steps below.
Explanation:
If you have to combine separate Microsoft Word documents, you can copy and paste them together if they're short, or merge them if they're long.
Select the Insert tab.

Select Object, and then select Text from File from the drop-down menu.

Select the files to be merged into the current document. Press and hold Ctrl to select more than one document.
Topic 5, Chemistry Lab
Exhibit.

See the steps below.
Explanation:
Click the Mailings tab.
Click the Start Mail Merge button.
Select Step-by-Step Mail Merge Wizard.
The Mail Merge pane appears on the right, ready to walk you through the mail merge.
Select a type of document to create.
Click Next: Starting document.

See the steps below.
Explanation:

When Track Changes is on, deletions are marked with a strikethrough, and additions are marked with an underline. Different authors' changes are indicated with different colors.
When Track Changes is off, Word stops marking changes, but the colored underlines and strikethrough from your changes remain in the document until they're accepted or rejected.

See the steps below.
Explanation:
These steps show you how to mark words or phrases for your index, but you can also Mark index entries for text that spans a range of pages.
Select the text you'd like to use as an index entry, or just click where you want to insert the entry.


You can add a second-level in the Subentry box. If you need a third level, follow the subentry text with a colon.
To create a cross-reference to another entry, click Cross-reference under Options, and then type the text for the other entry in the box.
To format the page numbers that will appear in the index, select the Bold check box or Italic check box below Page number format.
Click Mark to mark the index entry. To mark this text everywhere it shows up in the document, click Mark All.
To mark additional index entries, select the text, click in the Mark Index Entry dialog box, and then repeat steps 3 and 4.