You can upload and download files from and to the SAPUI5 ABAP repository with the following tools:
We recommend to use SAP Web IDE for developing complex apps with the latest innovations. SAPUI5 tools for Eclipse are suitable for simple use cases and more experienced developers.
As mentioned above, don't manually edit the BSP application representing a single SAPUI5 repository.
The SAPUI5 ABAP repository supports typical code pages for transferring of text files. However, there are some code pages that are not supported, for example code page CP932 containing Japanese characters. If in doubt, we recommend that you encode the files transferred to the SAPUI5 ABAP repository in UTF-8.