I performed a few searches and found an SA which might answer your question. The SA titled "MSOFileTransferButtons control does not work in Chrome" (SA-12659) describes an issue with this control when using Chrome. It you are experiencing the symptoms as described in this SA, the same solution may apply for you. In addition, the following PDN article "Configuring an application to bulk upload data by using an Excel spreadsheet" has some information on how to setup this control.
If neither of these articles help out with your problem, please add more details which describe the issue you have encountered so other community members can assist.