Performing server-side and client-side operations on spreadsheets

1. A method comprising:

launching, on a client computer, a document editing application associated with a cloud storage system, wherein the document editing application has a client calculation engine for performing spreadsheet calculations on the client computer;

presenting, via the document editing application on the client computer, a web-based collaborative spreadsheet stored on the cloud storage system, wherein the web-based collaborative spreadsheet comprises a plurality of cells, wherein calculations for one or more of the plurality of cells in the web-based collaborative spreadsheet are to be performed by at least one of the client calculation engine on the client computer or a server calculation engine on the cloud storage system;

receiving an input for a first cell of the plurality of cells in the web-based collaborative spreadsheet, wherein the input for the first cell of the plurality of cells in the web-based collaborative spreadsheet causes a calculation that involves at least one or more second cells of the plurality of cells in the web-based collaborative spreadsheet; and

upon receiving the input that causes the calculation involving at least the one or more second cells of the plurality of cells in the web-based collaborative spreadsheet:

determining to perform the calculation, caused by the input for the first cell of the plurality of cells and involving at least the one or more second cells of the plurality of cells, by the client calculation engine on the client computer or the server calculation engine of the cloud storage system,

wherein determining to perform the calculation by the client calculation engine or the server calculation engine is based on a network connection between the client computer and the cloud storage system, and one or more factors defining a speed of the calculation, the one or more factors comprising at least one of computing resources available at the client computer and the cloud storage system, or a type of the calculation;

responsive to determining to perform the calculation by the client calculation engine on the client computer,

performing the calculation, caused by the input for the first cell of the plurality of cells in the web-based collaborative spreadsheet and involving at least the one or more second cells of the plurality of cells in the web-based collaborative spreadsheet, by the client calculation engine on the client computer,

wherein responsive to determining to perform the calculation by the server calculation engine of the cloud storage system, the input is sent to the cloud storage system to perform the calculation by the server calculation engine of the cloud storage system;

obtaining a first result from the calculation performed by the client calculation engine on the client computer or a second result from the calculation performed by the server calculation engine of the cloud storage system; and

presenting, via the document editing application on the client computer, the obtained first result or second result in the web-based collaborative spreadsheet to a user.

2. The method of claim 1 , further comprising verifying accuracy of the obtained first result or second result using another result from the first result or second result that is obtained slower than the obtained first result or second result.

3. The method of claim 2 , wherein verifying the accuracy further comprises determining whether the other result matches the obtained first result or second result.

4. The method of claim 1 , further comprising sending the input to a plurality of servers of the cloud storage system to perform the calculation on the plurality of servers.

5. The method of claim 1 , further comprising storing, for a plurality of calculations, completion information of whether a result of each of the plurality of calculations completed quicker by the client computer or a respective server.

6. The method of claim 5 , further comprising determining that subsequent calculations are to be performed exclusively by either the client computer or the server based on the completion information.

7. The method of claim 1 , further comprising receiving, from the server, the document editing application for editing the web-based collaborative spreadsheet, wherein the document editing application has a calculation engine for performing the calculation on the client computer.

8. A non-transitory computer-readable media comprising instructions that, when executed by a processing device of a client computer, cause the processing device to perform operations comprising:

launching, on the client computer, a document editing application associated with a cloud storage system, wherein the document editing application has a client calculation engine for performing spreadsheet calculations on the client computer;

presenting, via the document editing application on the client computer, a web-based collaborative spreadsheet stored on the cloud storage system, wherein the web-based collaborative spreadsheet comprises a plurality of cells, wherein calculations for one or more of the plurality of cells in the web-based collaborative spreadsheet are to be performed by at least one of the client calculation engine on the client computer or a server calculation engine on the cloud storage system;

receiving an input for a first cell of the plurality of cells in the web-based collaborative spreadsheet, wherein the input for the first cell of the plurality of cells in the web-based collaborative spreadsheet causes a calculation that involves at least one or more second cells of the plurality of cells in the web-based collaborative spreadsheet; and

upon receiving the input that causes the calculation involving at least the one or more second cells of the plurality of cells in the web-based collaborative spreadsheet:

determining to perform the calculation, caused by the input for the first cell of the plurality of cells and involving at least the one or more second cells of the plurality of cells, by the client calculation engine on the client computer or the server calculation engine of the cloud storage system,

wherein determining to perform the calculation by the client calculation engine or the server calculation engine is based on a network connection between the client computer and the cloud storage system, and one or more factors defining a speed of the calculation, the one or more factors comprising at least one of computing resources available at the client computer and the cloud storage system, or a type of the calculation;

responsive to determining to perform the calculation by the client calculation engine on the client computer,

performing the calculation, caused by the input for the first cell of the plurality of cells in the web-based collaborative spreadsheet and involving at least the one or more second cells of the plurality of cells in the web-based collaborative spreadsheet, by the client calculation engine on the client computer,

wherein responsive to determining to perform the calculation by the server calculation engine of the cloud storage system, the input is sent to the cloud storage system to perform the calculation by the server calculation engine of the cloud storage system;

obtaining a first result from the calculation performed by the client calculation engine on the client computer or a second result from the calculation performed by the server calculation engine of the cloud storage system; and

presenting, via the document editing application on the client computer, the obtained first result or second result in the web-based collaborative spreadsheet to a user.

9. The non-transitory computer-readable media of claim 8 , wherein the operations further comprise verifying accuracy of the obtained first result or second result using another result from the first result or second result that is obtained slower than the obtained first result or second result.

10. The non-transitory computer-readable media of claim 9 , wherein verifying the accuracy further comprises determining whether the other result matches the obtained first result or second result.

11. The non-transitory computer-readable media of claim 8 , wherein the operations further comprise sending the input to a plurality of servers of the cloud storage system to perform the calculation on the plurality of servers.

12. The non-transitory computer-readable media of claim 8 , wherein the operations further comprise storing, for a plurality of calculations, completion information of whether a result of each of the plurality of calculations completed quicker by the client computer or a respective server.

13. The non-transitory computer-readable media of claim 12 , wherein the operations further comprise determining that subsequent calculations are to be performed exclusively by either the client computer or the server based on the completion information.

14. The non-transitory computer-readable media of claim 8 , wherein the operations further comprise receiving, from the server, the document editing application for editing the web-based collaborative spreadsheet, wherein the document editing application has a calculation engine for performing the calculation on the client computer.

15. A system comprising:

a memory; and

a processing device, coupled to the memory, to perform operations comprising:

launching, on a client computer, a document editing application associated with a cloud storage system, wherein the document editing application has a client calculation engine for performing spreadsheet calculations on the client computer;

presenting, via the document editing application on the client computer, a web-based collaborative spreadsheet stored on the cloud storage system, wherein the web-based collaborative spreadsheet comprises a plurality of cells, wherein calculations for one or more of the plurality of cells in the web-based collaborative spreadsheet are to be performed by at least one of the client calculation engine on the client computer or a server calculation engine on the cloud storage system;

receiving an input for a first cell of the plurality of cells in the web-based collaborative spreadsheet, wherein the input for the first cell of the plurality of cells in the web-based collaborative spreadsheet causes a calculation that involves at least one or more second cells of the plurality of cells in the web-based collaborative spreadsheet; and

upon receiving the input that causes the calculation involving at least the one or more second cells of the plurality of cells in the web-based collaborative spreadsheet:

determining to perform the calculation, caused by the input for the first cell of the plurality of cells and involving at least the one or more second cells of the plurality of cells, by the client calculation engine on the client computer or the server calculation engine of the cloud storage system,

wherein determining to perform the calculation by the client calculation engine or the server calculation engine is based on a network connection between the client computer and the cloud storage system, and one or more factors defining a speed of the calculation, the one or more factors comprising at least one of computing resources available at the client computer and the cloud storage system, or a type of the calculation;

responsive to determining to perform the calculation by the client calculation engine on the client computer,

performing the calculation, caused by the input for the first cell of the plurality of cells in the web-based collaborative spreadsheet and involving at least the one or more second cells of the plurality of cells in the web-based collaborative spreadsheet, by the client calculation engine on the client computer,

wherein responsive to determining to perform the calculation by the server calculation engine of the cloud storage system, the input is sent to the cloud storage system to perform the calculation by the server calculation engine of the cloud storage system;

obtaining a first result from the calculation performed by the client calculation engine on the client computer or a second result from the calculation performed by the server calculation engine of the cloud storage system; and

presenting, via the document editing application on the client computer, the obtained first result or second result in the web-based collaborative spreadsheet to a user.

16. The system of claim 15 , wherein the operations further comprise verifying accuracy of the obtained first result or second result using another result from the first result or the second result that is obtained slower than the obtained first or second result.

17. The system of claim 16 , wherein verifying the accuracy further comprises determining whether the other result matches the obtained first result or second result.

18. The system of claim 15 , wherein the operations further comprise sending the input to a plurality of servers of the cloud storage system to perform the calculation on the plurality of servers.

19. The system of claim 15 , wherein the operations further comprise storing, for a plurality of calculations, completion information of whether a result of each of the plurality of calculations completed quicker by the client computer or a respective server.

20. The system of claim 19 , wherein the operations further comprise determining that subsequent calculations are to be performed exclusively by either the client computer or the server based on the completion information.