File Extension Library


.CU1 File Extension

  • Developer by: Impressum
  • Category: Various data Files

What is an .CU1 file?

.CU1 file extension is created by Impressum. .CU1 has been classified as Various data Files.

.CU1 is Photoline 4 curve file

The CU1 file extension is associated with Photoline 4 and used for files that contain curve data.


How to open:

Due the variability and uncertainty of this file type group, there is no general information available, about how to open this various data file format. However most files with extension from this group are usually not meant to be opened or viewed directly. If there are associated applications or programs listed below the extension description, you can always try to check their website for additional informations on their forums or other type of customer support.For general information try to look at:Identifying unknown file formats

How to convert:

Due the variability and uncertainty of this file type group, there is no general information available, about how to convert this various data file format. However most files with extension from this group are usually not in formats, which can be converted. If there are associated applications or programs listed below the extension description, you can always try to check their website for additional informations on their forums or other type of customer support.

How to Open .CU1 file on different platforms

Open .CU1 File on Windows

  • Right-click a .CU1
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .CU1 file and Select check box "Always use this app to open .CU1 files" Press "Ok"

Open .CU1 File on Mac

  • Right-click (or Ctrl + Left-click) the .CU1 file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .CU1 File on Linux

Right click on the .CU1 file, choose "Open with" and select a program from the list above

Open .CU1 File on iPhone

Select a file. If you don't see an application to open the .CU1 file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .CU1 File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .CU1 files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .CU1 files

  1. You need to update the application that you normally use to open .CU1 files. Only the latest version of the software supports the current .CU1 file format
  2. You need to check the .CU1 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)