sheetjs/packages/s/tsconfig/tsconfig.types.json

{
  "extends": "./tsconfig.base.json",
  "compilerOptions": {
    "module": "es2015",
    "target": "esnext",
    "removeComments": false,
    "declaration": true,
    "declarationDir": "../dist/typings",
    "emitDeclarationOnly": true
  }
}