The error means the software’s file handler cannot lock, read, or parse the header of bigfile000 . Common technical reasons include:
How to Fix the "Unable to Open Bigfile bigfile000" Error After an Update unable to open bigfile bigfile000 updated
The "bigfile" error often triggers when the game doesn't have "write" or "read" permissions for the folder where the update was downloaded. Navigate to the game's installation folder (e.g., SteamLibrary\steamapps\common\TombRaider Right-click the game's executable ( Properties Compatibility Run this program as an administrator Disable full-screen optimizations 3. Clear the Update Cache Sometimes the The error means the software’s file handler cannot
Photorec (part of TestDisk) ignores the filesystem and scans for known file signatures. Clear the Update Cache Sometimes the Photorec (part
If the file is a virtual disk (VMDK/VHD) that was split:
Repair Gaming services. ... Reinstall the Gaming Services app on your Windows 10/11 device: Select the Search icon on the taskbar, Forza Support