<function name="ReadUInt64" parent="File" type="classfunc"> <description>Reads an unsigned 64-bit integer from the file.</description> <realm>Shared and Menu</realm> <added>2023.09.06</added>⤶ <added>2023.08.30</added>⤶ <rets> <ret name="" type="string">An unsigned 64-bit integer. <note>Since Lua cannot store full 64-bit integers, this function returns a string. It is mainly aimed at usage with <page>Player:SteamID64</page>.</note> </ret> </rets> </function>