I got some error messages while installing it, it is not working well in filament version 3.

[getfree256]

Problem 1

• alperenersoy/filament-export[v0.1.1, ..., v0.2.7] require filament/filament ^2.0 -> found filament/filament[v2.5.3, ..., v2.17.56] but it conflicts with your root composer.json require (^3.2).
• alperenersoy/filament-export[v0.2.8, ..., v0.3.9] require filament/tables ^2.0 -> found filament/tables[v2.3.6, ..., v2.17.56] but the package is fixed to v3.2.40 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command.
• Root composer.json requires alperenersoy/filament-export * -> satisfiable by alperenersoy/filament-export[v0.1.1, ..., v0.3.9].

Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.