# TypeScript migration Make sure you read through our TypeScript's [style guide](https://github.com/Expensify/App/blob/main/contributingGuides/TS_STYLE.md), [cheatsheet](https://github.com/Expensify/App/blob/main/contributingGuides/TS_CHEATSHEET.md) and [PropTypes conversion table](https://github.com/Expensify/App/blob/main/contributingGuides/PROPTYPES_CONVERSION_TABLE.md) before you start working on this migration issue. ### Files | Path | Dependencies | |---|---| | [src/libs/localFileDownload/index.js](https://github.com/Expensify/App/blob/main/src/libs/localFileDownload/index.js) | 1 | | [src/libs/localFileDownload/index.ios.js](https://github.com/Expensify/App/blob/main/src/libs/localFileDownload/index.ios.js) | 3 | | [src/libs/localFileDownload/index.android.js](https://github.com/Expensify/App/blob/main/src/libs/localFileDownload/index.android.js) | 2 | <!-- END_OF_TABLE -->
TypeScript migration
Make sure you read through our TypeScript's style guide, cheatsheet and PropTypes conversion table before you start working on this migration issue.
Files