Say that several people are editing the same workbook. If Tom filters to show only his records, then the other people will only see Tom's records. We need to be able to have each person apply a different filter and see only their records.
Note that it is fine to require that the workbook can not have SUBTOTAL or AGGREGATE functions in order for independent filtering to work. If you allow these functions, then everyone will have different calculation results which would be problematic.
It is more important to us to be able to have each person apply a local filter than to have the rare AGGREGATE function work correctly.
Thanks!

When a person's display name contains a bracket character (such as a departmental suffix) this bracket is included in the folder name of a OneDrive shared folder. When a recipient of that OneDrive shared folder attempts to modify an Excel spreadsheet and save it back to the shared folder, they will see an error that the file could not be saved due to invalid characters in the filename or path. If Excel could support the bracket character in the filename or path this would no longer be an issue. (An alternative solution would be to allow admins an option to have OneDrive shared folders use the owner's UPN rather than their display name.)

Comment bubbles only "float" over the fixed worksheet area that's set by default or that's manually changed by the user. They also will float over hidden adjacent rows or columns. However, if a comment is in a cell that's fixed using the "freeze panes" feature but the worksheet display isn't contiguous to the comment bubble, the bubble will be cut off instead of float over the frozen panes.

This makes it impossible to read a comment saved in a row 1 header field (say to read details of what type of data is supposed to go there) but the cell you want to edit is in row 1000.

Can comments be improved to float over all user interface and worksheet elements so they can display without interruption regardless of the freeze panes settings?

I'm sure that Microsoft's experts will be able to optimize the Power Query code. However, almost certainly there will be users with very massive models that update very long. Please add the possibility of using distributed computing to process Power query queries.
It would be very cool if we will be able to configure in a simple interface wich of colleagues computers in the local network (and maybe on the Internet), whose resources, can be used to speed up the calculation. And when processing queries, use avialable resources together.
In addition, the use of distributed computing in a local network can increase the performance of individual computers.
If you can create a simple user interface and the ability to configure without the intervention of system administrators (or with minimal intervention), this will become a useful option.

Autosave is fine for a phone but using in in the "real" (Desktop - paid for) version of Excel is a terrible idea.

I have my main files on a portable running Win 10 Desktop and I save first to a local drive expecting them then to be updated in my OneDrive.

This hasn't happened. My iPad copies are the versions since before the misguided upgrade to the Desktop version that made AutoSave compulsary. Files are not then saved on the portable but marked Update Pending which is useless when later in the day I want to check - for instance - my share situation on the iPad before making an investment decision.

Issue:
There are many times where my co-workers and I are required to work in the same spreadsheet simultaneously. The excel web application allows us to do this but does not contain the full functionality of excel that is required to do our work. Although Excel already has as shared spreadsheet option, each time a user wants to see updates, they have to save and hope the other person saved their updates as well.

Solution:
It would be great to use excel and collaborate in real time just as the web app does but within the excel platform on our computers with all the regular features we use such as macros, VBA, formatting and etc. This would greatly enhance productivity and our use with excel to be able to edit spreadsheets in real time with others with less limitations as the web app or the current excel sharing setup.