Add Support for Box.com to open and save too
thanks
Joe

When people would be editing it offline, then the people online could possibly edit it online

For example: Every survey submission shows up with a user defined cell attached in the excel (e.g. the average of two values is included automatically in-line).
This would let you automatically do some analysis on incoming data, which is extra helpful if you have a large number of people also viewing the results of the survey.

The ability to place textboxes(..etc) side by side, not just on top of eachother.

Enhance the JavaScript Excel Web Access Ewa Namespace API (https://msdn.microsoft.com/en-us/library/ee589018.aspx) so it has more of the features that the newer Office Excel Add-in JavaScript API (Office.js) has (https://msdn.microsoft.com/en-us/library/ee589018.aspx), including cell formatting and ability to submit API calls in batches.
OR simply replace Ewa with the Excel Add-in API, but continue to allow embedding of Excel Online on public websites (Office Add-ins don't allow this without Office Store).

When opened from a SharePoint library users don't know how to get back to the library. Sure, the back button works but a bit of navigation is nice.

category would be 'data entry' -- makes it easier to keep a good workflow going.

In Excel Online, you can right-click Insert Comment - the pane on right appears. You enter your comment only to accidentally click to say another cell and you lose the comment (as Post was not clicked). Maybe some sort of warning would be good?

Allow for autocompletion of typed text from a linked table (not just cells above the current cell).

Hi , I use office online a lot , and i would like to know at what time i have edited which data into the document, it could be a excel or word of a PowerPoint.

which will help a lot to normal users and also of the files are shared online for edition , owner will get to know which member has edited the document.

In Excel Online on OneDrive, you can choose File > Embed, and you get a nice dialog that let's you choose the part of the workbook you want to embed, and a bunch of other options and then it will generate an embed code for you.

But, if the file is stored in Office 365 / OneDrive for Business / SharePoint Online, there is no "Embed" option on the File menu. There should be, please add it!

we have a group project that involves entering and editing about 30,000 rows x 8 columns of data in an excel sheet. I have been researching the co-authoring new function. Are there any limitations for mulitple users? We usually have around 3-5 people entering at the same time. Would this cause problems? we currently have gone away from Excel for this project and used Google Sheets. However, it does not seem very robust and there are frequent screen freezes and crashes.

Excel (and the other Office products, specially Word) for Chromebook under Chrome-OS..

Hi, it will be great if at least there will be an option to download the documents in utf-8 encoding as we live in international world. unicode for all docs! yay.

I cant drage and select whole data sheet by using mouse pointer or cursor

things like select all (Ctrl+A), copy and paste (using enter button), absolute F4 button is not available .

You can resize everything except documents in sway. Meke it so..