Hi Team,

I would like to request the Kendo UI Spreadsheet to include JSZip 3.x functionality for future releases. 

Thank you!

It would be great if you could put images to cells using html. E.g.: <img src="..."> would result in an image in the cell.

Use case:
My app doesn't know how many rows of data the excel spreadsheet will be prior to upload.  I've defaulted to my maximum amount of 10,000 which will be normal for some, but overkill for others.  The ability to change the number of rows/columns to accommodate the size of the sheet after loading, would be a nice addition.  

As a workaround, I'm destroying and reloading the widget instance after the initial load.

Currently, after export to excel and opening the exported file again in Spreadsheet, the row heights for rows with predefined height change. The above could be easily observed on the Index demo:

* initially, the height of the top row is set to 70px;

* export the Spreadsheet to Excel;

* after re-importing the above file, the height of the first row "Invoice #52" becomes 81px without any apparent reason.

Enable Cut/Copy cell values and can Paste it in mutiple selected values

The Excel file downloaded from Spreadsheet does not maintain leading spaces.  In other words, the internal sharedString.xml should use <t xml:space="preserve"> when necessary.

Allowing custom editors to be inline would be very helpful. In particular, inline editors using other Kendo controls (e.g. masked textbox, numeric textbox) should be possible.

In the scpreadsheet you can use controls like  dropdowns & datepicker , but should be helpful if user could to customize the design and behavior. 

For example, the dropdown and any other control needs be opened since an icon at right that is displayed over the next column, As user i would like to choose how i want to be displayed the control: Open clicking on it, set expand direction, styles, etc.

E.g. italian culture uses ";" as parameter separator in formulae.
Our client will adopt spreadsheet component on a global basis and users need to be able to e.g. copy/paste from excel to spreadsheet component using their culture

Additional functionality for:
-- Conditional Formatting -- coloring of cells, for example based upon a value and then be able to import from excel, and export back out.
-- Data Validation (dropdowns).  Also be able to import and export back out.

It would be great if you would add accessabbility to the spreadsheet as it seems to be the last control without this feature.

Currently the focus gets trapped inside its grid and the user cannot leave the spreadsheet with the TAB key. At least this should be avoided. It would be also better if only the first cell would be focusable and you then could navigate with the arrow keys, as with thousands of cells it is not very comfortable to use the TAB key.

Set Fixed Cols/Rows etc. or setOptions( {filter: { ref: "A3:G49", columns:[]}});

It would be useful if copy and paste the data have the option of fill the series or copy the value for the date format. 
Furthermore, copy from multiple column value and allow to paste multiple copied value from the spreadsheet will be added advantage. 

Thanks. 

type =IF( "a"="A" ; 1 ; 0 ) and =IF( EXACT("a";"A") ; 1 ; 0 )
into Kendo Spreadsheet and Google Spreadsheet and MS Excel.
There is a special EXACT function (which is also available in Kendo) to enforce case-sensitivity. By default it should be off.

In Kendo UI spreadsheet when wrap cell text it currently split text in middle of word. Change so that splits on white space

On excel, you can filter merged rows. On the kendo spreadsheet widget, filtering on merged rows is not possible. It would be a very useful feature for us. 

Also worth noting is that if you convert an excel file to JSON using Telerik RadSpreadProcessing, and load the kendo widget with the JSON, the widget displays a filter icon but clicking it loads a non-functioning filter. Wouldn't it make more sense to load with a message along the lines of 'You loaded a spreadsheet with filters applied to merged rows, which is not supported in this widget'. Otherwise it's quite confusing to our users.

Define by Settings or via API Calls custom context Menu for any Cell,
like change current by Event BeforeContextMenu(ref ContextMenuElement)

can add float object container ? eg:charts

Ability to hover over a cell and see a tooltip