4. Click through the wizard that appears to allow it to close any open Office applications and install any available updates.
Windows Updates
Click the Start or Windows button near the lower left and then click the Gear icon two icons above it.

2. Click on Update and Security
3. Click either Check for Updates, Download, Install, or Restart, depending on what option is available.
Check with IT
After completing the update checks and installations, you are welcome to reach out to IT to have them do additional checks for updates and general maintenance.
TEAMS
As your team works together, you'll undoubtedly have files that you'll want to share and collaborate on. Microsoft Teams makes it easy to share files within channels. If the files are Word, Excel, PowerPoint, or Visio files, your colleagues can even view, edit, and collaborate on the files right within Teams. For Word, Excel, and PowerPoint, they can see each other’s changes in almost real time. Let's take a look at how you can use Microsoft Teams to work better together.
Note: Viewing non-Office files in Teams must be done from the underlying SharePoint library.
Your files library
Within each Microsoft Team there are one, or more, channels where more focused discussions take place. Each channel has its own file folder where you can share files with that channel. To access that folder, go to the channel and click Files on the tabs above the conversation window.

Note: Make sure to use the Files tab at the top of the channel conversation window instead of the Files button on the left-hand navigation pane. The Files button on the navigation pane gives you access to ALL of your cloud files, rather than just the files for that specific channel.
In the library you can upload existing files or create new ones.
Upload existing files
There are two primary ways to upload existing files into your library. Both methods start by going to the files folder for your channel and both methods, by default, upload copies of your files to the channel file folder.
Drag and drop - Using your mouse, drag the file from where it's currently located and drop it on the Teams window among the files. You can also easily upload multiple files using this technique.
Upload - If you click the Upload button, a File Explorer dialog box opens, allowing you to select the file (or files) you'd like to upload. Select those files and click Open.
Any files you upload will be accessible by any member of your Team.
Create new files
To quickly create a new Word, PowerPoint, or Excel document in your files folder, click the New button and then select the kind of file you'd like to create. Give your new file a name and click create. The new file will open in Teams so you can begin editing it, and if you'd prefer to work in the desktop version of the app you'll find an Open in... button on the ribbon that will open the file there for you.
As soon as it's created, your new file will be available for your team members to edit as well.
Collaborate on the files
Files stored in your team's file library are accessible to every member of the Team. In Office for the web, Office for Android or iOS, or the latest applications from Office 365, you and your Team members can collaboratively co-edit Word, PowerPoint, or Excel documents, or comment on Visio files. No need to check files out or worry about if one of your colleagues has the document open. Just open the file you need to edit and if other Team members are editing it too your changes will be seamlessly merged as you work.
Share with people outside your team
There may be an occasion when you'll want to share your file with somebody outside your team. If the file is a Word, Excel, PowerPoint, or Visio file the easiest way to do that is to open the file with the appropriate Office for the web or Desktop app and click Share towards the top right corner of the window. That opens the Share dialog box where you can enter the aliases or email addresses of people you want to share with.

Important: To share with somebody outside your team, you'll have to open the file in Office for the web or Office desktop; the Teams editor doesn't have that feature. Click the arrow next to the Edit button and choose the appropriate app.

If you want to share with people outside your organization you may have to click the permissions drop-down (right above where you add the people you want to share with) and select that Specific People can access the file.

Once you've shared the file, those users can edit the file in real time (unless you unchecked Allow editing in the Link Settings dialog) just like the other members of your Team can.
ONEDRIVE
With Office it’s easy to work with others, including people who don't have Microsoft Office, because you can send links to documents instead of sending file attachments, which they can review (and edit, if you let them) in Office for the web. That saves on e-mail storage and prevents you from having to reconcile multiple versions of the same document.
To get started, store your document on OneDrive
The safest place to save documents is the OneDrive folder. You can find it by opening File Explorer and then scrolling to it in the left sidebar.

To send a link, click Share at the top of the Office program window:

When your coworkers click the link you send, the document opens in their browser.
To edit, they click the command for editing in the Office for the web program.

Work with others in Office
When you are editing a file in Office you might see notification that others are working in the file too. There is no special trick to begin working together on a document. You edit as you normally would, and if others are also editing the document, Office alerts you to their presence, and shows you where in the file they’re working.
Notes:
Because Office automatically saves everyone’s changes, the Undo and Redo commands might not work the way you expect.
In Excel, when one person changes the sort order or filters data, the view changes for everyone who is editing the workbook. So, be mindful of sorting and filtering while others are in the workbook.
Share SharePoint files or folders
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The files you store on a SharePoint site are usually available to everyone with permissions to the site, but you may want to share specific files or folders with people who don't otherwise have access to the site. When you share files and folders, you can decide whether to let people edit or just view them. You can see who a SharePoint file is shared with, and stop sharing SharePoint files or folders, or change permissions, at any time.
Share a file or folder
Here's how you share files or folders in SharePoint:
Select the file or folder you want to share, and then select Share.

(Optional) Click the dropdown list to change the type of link. The Details pane opens, where you can change who can access the link and whether people can edit the item you’re sharing.
Options for Who would you like this link to work for (options vary based on admin settings):
Anyone gives access to anyone who receives this link, whether they receive it directly from you or forwarded from someone else. This may include people outside of your organization.
Note: This option is not available in SharePoint Server 2019.
People in T-Rex gives anyone in your organization who has the link access to the file, whether they receive it directly from you or forwarded from someone else.
People with existing access can be used by people who already have access to the document or folder. Use this if you just want to send a link to somebody who already has access.
Specific people gives access only to the people you specify, although other people may already have access. If people forward the sharing invitation, only people who already have access to the item will be able to use the link.
Note: If a sharing option has been greyed out, your organization's admins may have restricted them. For example, they may choose to disable the Anyone option to prevent usable links being forwarded to others.
By default, Allow editing is turned on. If you want people to only view your files, uncheck the check box.
When you're done, click Apply.
Enter the names of the people you want to share with and a message, if you want.
When you’re ready to send the link, click Send.
Note: When sharing a file, if you select the Outlook option, this only allows you to include a link to the file in the email message. If you want to attach the actual file, you must download a local copy from SharePoint, then attach the file to the email.
Get a link to a file or folder that you can copy
Another way to share is to get a link to a file or folder that you can copy and paste in a text message or on a website. People you share these links with can also forward your link to others.
In SharePoint, click Copy link. The link is automatically copied to your clipboard.

2. (Optional) Click the dropdown list to change the type of link. The Details pane opens, where you can change who can access the link and whether people can edit the item you’re sharing.
Options for Who would you like this link to work for (options vary based on admin settings):
Anyone gives access to anyone who receives this link, whether they receive it directly from you or forwarded from someone else. This may include people outside of your organization.
People in T-Rex gives anyone in your organization who has the link access to the file, whether they receive it directly from you or forwarded from someone else.
People with existing access can be used by people who already have access to the document or folder. It does not change the permissions on the item. Use this if you just want to send a link to somebody who already has access.
Specific people gives access only to the people you specify, although other people may already have access. If people forward the sharing invitation, only people who already have access to the item will be able to use the link.
By default, Allow editing is turned on. If you want people to only view your files, uncheck the check box. This can be further restricted by selecting the option to Block download, which means they cannot save a local copy.
When you're done, click Apply.
3. Paste the link (Ctrl+V) to wherever you want, such as a text message or on a website.
Notes:
The permission granted by a sharing link lasts only as long as the link exists. For example, when a link is disabled, access is revoked (though people may still have access to the file via other means).
When Allow editing is selected: After they sign in, people in your organization can edit, copy, or download the files. When Allow editing isn’t selected, people in your organization can view, and may be able to copy or download the files.
Site administrators can restrict sharing so that only owners can share files and sites.
If site administrators have not restricted sharing to site owners, any user with Edit permissions to a file or folder can share that file or folder with others by clicking Share or Copy link. Users who don't have edit permissions can use Copy link to get a link that will work for users who already have permissions to the file or folder.