# 3d mesh problem using readmesh3/savemesh in Windows 10

**URL:** https://community.freefem.org/t/3d-mesh-problem-using-readmesh3-savemesh-in-windows-10/1978
**Category:** General Discussion
**Created:** [August 31, 2022, 10:15am UTC](https://community.freefem.org/t/3d-mesh-problem-using-readmesh3-savemesh-in-windows-10/1978 "2022-08-31T10:15:12Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![ydm](https://avatars.discourse-cdn.com/v4/letter/y/ba8739/32.png) [@ydm](https://community.freefem.org/u/ydm)
#### Post date: [September 1, 2022, 9:51am UTC](https://community.freefem.org/t/3d-mesh-problem-using-readmesh3-savemesh-in-windows-10/1978/3 "2022-09-01T09:51:49Z")

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Thank you for your reply.

I think I didn’t ask my question clearly. It’s not about which mesh file format can be imported into FF++. My problem is that readmesh3 and savemesh functions are not working in Windows 10 system.

I think other users had the same problem a few days ago:

> [@Error of savemesh in 3D](https://community.freefem.org/t/error-of-savemesh-in-3d/1839):
>
> Hello!everyone, I install windows version FreeFem 4.11 in win 10. But there is something wrong when I save 3D mesh. So I test the following simple code: load "msh3" load "medit" mesh3 Th3=cube(10,15,5); plot(Th3); medit("Th3",Th3); savemesh(Th3, "surf.mesh"); The program is terminated when it runs to savemesh, then I get a empty surf.mesh file with 0KB, I don’t know what the problem is？ Thank you in advance.

> [@Problem reading/writing mesh file](https://community.freefem.org/t/problem-reading-writing-mesh-file/455/5):
>
> I ran this code on my computer But when I open the saved grid file, it is blank. I don’t no why.

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