Co-authoring with SharePoint Online and Excel desktop applications is a plague for years. This has to be the most common problem that keeps coming back up over and over. For whatever reason Excel files become read-only locked for all users accept for the last person that made an edit with the desktop application. All other users are prompted to save a copy of the file.

Microsoft you need to figure this issue out. Devise a way for the local office cache to resolve itself, or fix autosave, or the other myriad of options which is causing this ongoing conflict to keep happening.

Request is to enhance the track changes

1- Give us the possibility to track changes on specific sheet.

Often we have a sheet for data processing and we do not wanted to track changes on that specific sheet.

2- Track changes only in a specific area of a sheet

Same as previous but apply to a specific region of a sheet as not the whole sheet need to have changes to be track

3-Have the history sheet always visible

To see history we have to go inside track option and enable the track sheet, in intensive review session we would like to have this enable all the time

This applies to scenarios where making a workbook a shared file so everyone can edit at the same time isn't feasible

Sometimes when multiple people are trying to work within the same workbook, the person who is currently working in the spreadsheet will forget about it if multi-tasking and doing other things. The other people waiting have no idea if the other person is actually still working in the workbook or forgot about it or worse, is away from their desk. A solution to this would be to create a reminder that pops-up in the workbook with two buttons after 5 or 10 minutes of no activity in the workbook. The pop-up would ask if the user is still working in the workbook (response button 1 could say, "Yes, I need more time" or if they're done, give them the option to save and close out (button 2 could say "No, I'm finished.") Incorporating this into Excel and even other Microsoft Applications (word, PowerPoint, etc.) would be more efficient and encourage people in the workbook to be productive and not delay making their changes/updates.

This applies to scenarios where making a workbook a shared file so everyone can edit at the same time isn't feasible

Sometimes when multiple people are trying to work within the same workbook, the person who is currently working in the spreadsheet will forget about it if multi-tasking and doing other things. The other people waiting have no idea if the other person is actually still working in the workbook or forgot about it or worse, is away from their desk. A solution to this would be to create a reminder that pops-up in the workbook with two buttons after 5 or 10 minutes of no activity in the workbook. The pop-up would ask if the user is still working in the workbook (response button 1 could say, "Yes, I need more time" or if they're done, give them the option to save and close out (button 2 could say "No, I'm finished.") Incorporating this into Excel and even other Microsoft Applications (word, PowerPoint, etc.) would be more efficient and encourage people in the workbook to be productive and not delay making their changes/updates.

These are currently two separate export options, email vs export to pdf.
So emailing a worksheet as pdf turns into a six steps process: 1) export to pdf; 2) choose folder and save; 3) switch to outlook; 4) create email; 5) add attachment; 6) choose folder then pdf file. If lucky, it can go a couple steps down when outlooks prelists recent pdf created as attachment candidates.
The current option available in excel "Email as PDF attachment" converts whole workbook as PDF for Mail attachment.

Can we improve on this and add a pop option similar to the option we get for "send to mail recipient " giving the option to select current worksheet or whole workbook as attachment.