# FAQ

## Installation & Runtime

### The add-in store is blocked in my company. What can I do?

The easiest solution is to ask your Office admin to install xlwings Lite via Office 365 Admin Center. If they are unwilling to do so, let them know that xlwings Lite can also be [self-hosted](self-hosting.md).

### Does xlwings Lite require Python to be installed locally?

No, installing the add-in is the only requirement.

### Is there any user or usage quota or limitation?

No.

## Code, Packages & Data

### Where is the Python code stored?

The Python code is stored inside the workbook, making it easy to distribute your workbook.

### Can I install the Python packages I want?

Yes, with certain limitations, see [Dependencies](dependencies.md).

### Can I make web API calls?

Yes, as long as the server supports CORS, see [Web API Requests](web-requests.md).

## Privacy & Distribution

### Does xlwings Lite send out any data?

No, xlwings Lite runs entirely on the end-user’s machine and doesn’t send any data out. There is one exception: custom functions that return Matplotlib figures need to send the picture to the xlwings image cache. This can be turned off under **xlwings Lite menu > Settings > Local**, see [Custom functions that return images](security.md#custom-functions-that-return-images). For usage statistics, we use [Plausible](https://plausible.io/), which is fully GDPR, CCPA, and PECR compliant (this won’t be done for the self-hosted version).

### Can I protect my Python code?

No, your Python code is part of the workbook and therefore accessible to the end-user. If you need to protect your Python code, you can use [xlwings Server](https://server.xlwings.org).

### Can I build an Excel add-in with xlwings Lite?

No. To build an add-in, you need to either use [xlwings Server](https://server.xlwings.org/) or [xlwings Wasm](https://server.xlwings.org/en/latest/index_wasm/). xlwings Lite itself is built with xlwings Wasm.

## Comparisons

### What is the difference between xlwings Lite and Microsoft’s official Python in Excel solution?

See [xlwings Lite vs. Python in Excel](https://www.xlwings.org/lite/vs-python-in-excel).

### What is the difference between xlwings Lite and Anaconda Code?

See [xlwings Lite vs. Anaconda Code](https://www.xlwings.org/lite/vs-anaconda-code).