Windows 10: Windows cannot open any files such as Doc, Excel, etc.

I ran Windows update yesterday 6/9/2020 before turning off my computer. Today no Doc files will open. I cannot open FortaClient either. The error message is:





Here is a the update history:




What do I do? I have tried running multiple fixes seen on other posts. They are not working.

:)

 

CSV files used to open in Excel....not now!

Hi, you say Excel is installed. Does it run normally?

You can't find Excel in (an unspecified) list of applications. I don't know which list that is for sure.

For example, in the list related to:
- rt click a file. Open With
- this list:



- this list:




- some other list...

If Excel does not appear in the above, I suggest you repair your office installation.

Maybe the above gives you some ideas. Otherwise please post a screenshot of where you think you should see it but don't. Thanks.

 

I have word 2010 installed and the .docs will not open all of a sudden. Excel also.

I have a lot of files in .doc but now they will not open and Excel will not also.

Text and PDF seem normal. Does anybody offer and suggestions please?

 

I need to convert Quattro pro files to windows Office 2007

http://office.microsoft.com/en-us/excel/ha010448731033.aspx

Install the Quattro Pro 5.0 converter
To install the converter for Quattro Pro versions 1.0 through 5.0 for Windows, do the following:

Click Start on the Windows taskbar, point to Settings, and then click Control Panel.
Double-click the Add/Remove Programs icon.
Click the name of the Microsoft Office 2000 or Microsoft Excel 2000 program that you have, and then click Add/Remove.
Click Add or Remove Features, and locate the Quattro Pro 5.0 Converter under Microsoft Excel for Windows.
Click Run From My Computer to install the converter to your hard disk.
Click Update Now.
Open a Quattro Pro file
To open a Quattro Pro file in Excel, follow these steps:

Click Open on the File menu.
In the Look in list, click the drive or folder that contains the file you want to open, and then locate the folder that contains the file.
In the Files of type list, click Quattro Pro 1.0/5.0 (Win) (*.wb1) if your files are from Quattro Pro for Windows versions 1.0 through 5.0, or click Quattro Pro/DOS Files (*.wq1). The former requires installation of the converter, as outlined above, before it appears in the list.
Double-click the file you want to open.
Notes

You cannot save files in the Quattro Pro 1.0/5.0 (Win) (*.wb1) format. If you open one of these files and make changes to it, you can save changes by saving as a Microsoft Excel Workbook (*.xls) or in another spreadsheet format.
You can save changes in the Quattro Pro/DOS format, but changes made using features that are unique to Excel may be lost.


or


http://office.microsoft.com/en-us/excel/HP052538431033.aspx

You can open a file created in another program, such as Lotus 1-2-3 or Quattro Pro, in Microsoft Excel the same way you would open an Excel file. You can then save the file in its original file format or as an Excel workbook using the standard Excel save commands. Files saved as Excel workbooks might not retain all of their original formatting, and features and formatting of an Excel workbook might not be available in other programs.