To upload files in GraphiShare, begin by navigating to the Clients panel. Select the client to whom you wish to upload the files. Upon selecting the client's name, you can create a folder named after the project. Click on the newly created folder, then select the “Upload File” button in the upper right corner. You will then have various options to import your file from. After choosing your file, click the “Upload File” button on the right to complete the process.