# Importing STL's crashed Preform **URL:** \ **Category:** Form 3/3+\ **Created:** [August 17, 2020, 11:54pm UTC](https://forum.formlabs.com/t/importing-stls-crashed-preform/28544 "2020-08-17T23:54:40Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![mephistoph](https://avatars.discourse-cdn.com/v4/letter/m/5f9b8f/32.png) [@mephistoph](https://forum.formlabs.com/u/mephistoph)\ **Post date:** [August 17, 2020, 11:54pm UTC](https://forum.formlabs.com/t/importing-stls-crashed-preform/28544/1 "2020-08-17T23:54:41Z")
Regardless of the STL file tessellation when attempting to import Preform will crash when a file is selected in the explorer window - before it’s imported. The same files can be right clicked and opened in Preform with “open with” without any issues. Running Win 10 build 18363 - i7-6700 4GHz, 16GB mem ---
**Author:** ![jvingaard](https://avatars.discourse-cdn.com/v4/letter/j/7993a0/32.png) [@jvingaard](https://forum.formlabs.com/u/jvingaard)\ **Post date:** [August 18, 2020, 5:09pm UTC](https://forum.formlabs.com/t/importing-stls-crashed-preform/28544/2 "2020-08-18T17:09:12Z")
I have the same problem, when i try to load a new object in to Preform. ? ---
**Author:** ![Gustavo\_Fontana](https://avatars.discourse-cdn.com/v4/letter/g/e0b2c6/32.png) [@Gustavo\_Fontana](https://forum.formlabs.com/u/Gustavo_Fontana)\ **Post date:** [January 9, 2021, 3:34pm UTC](https://forum.formlabs.com/t/importing-stls-crashed-preform/28544/3 "2021-01-09T15:34:10Z")
> [@mephistoph](#): > > The same files can be right clicked and opened in Preform with “open with” without any issues. I’m glad I came here and found this workaround. I tried many things yesterday even trying lesser quality tessellations and i crash every time, I’m using latest build of Preform 3.12.0 Formlabs team, you should really fix this. Please let me know if you need the crashing files to replicate this bug. Thanks, Gustavo