# Unable to open files Saved on Windows 10 on Mac Catalina
**URL:** https://community.aseprite.org/t/unable-to-open-files-saved-on-windows-10-on-mac-catalina/6734
**Category:** Bug Reports
**Created:** [August 19, 2020, 4:44pm UTC](https://community.aseprite.org/t/unable-to-open-files-saved-on-windows-10-on-mac-catalina/6734 "2020-08-19T16:44:05Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@matp](https://community.aseprite.org/u/matp)
#### Post date: [August 19, 2020, 4:44pm UTC](https://community.aseprite.org/t/unable-to-open-files-saved-on-windows-10-on-mac-catalina/6734/1 "2020-08-19T16:44:05Z")
Hello, as the title says, I am having trouble getting my Mac version of Aseprite to open files saved on Windows 10. I receive the error of “Error reading header”.
The files are synced via Dropbox and I am able to always work on the file on Windows 10.
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### Author:  [@dacap](https://community.aseprite.org/u/dacap)
#### Post date: [August 19, 2020, 5:01pm UTC](https://community.aseprite.org/t/unable-to-open-files-saved-on-windows-10-on-mac-catalina/6734/2 "2020-08-19T17:01:02Z")
Welcome @matp! Could you please share one of those .aseprite file with us at [support@aseprite.org](mailto:support@aseprite.org)?
We use Dropbox to share .aseprite files between Windows \<-\> macOS and didn’t notice this issue, but it might be a problem in some cases maybe.
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### Author:  [@matp](https://community.aseprite.org/u/matp)
#### Post date: [August 23, 2020, 6:49pm UTC](https://community.aseprite.org/t/unable-to-open-files-saved-on-windows-10-on-mac-catalina/6734/3 "2020-08-23T18:49:01Z")
Sure! Sending 🙂 thanks!