You are able to export your analytics data from Vidyard to a spreadsheet package for further manipulation.
There are two areas in Vidyard where you can do this type of export: either from the Reports Centre, or the Player Insights page.
When you export your data, only the top 10 players appear in the data, but you are expecting to see data from more players.
This has happened because you have run the Export to Spreadsheet option while in the Player Insights page with Show Views by Player enabled. This Export function is designed to replicate the data that you see on the screen, whereas the Report Centre options are designed to extract all of the information about your players.
Use the Report Centre options to export the data.