The File Extensions Database


.ISDOC File Extension

  • Developer by: ABRA
  • Category: Document Files

What is an .ISDOC file?

.ISDOC is Information System Document

The isdoc file extension is associated with the Information System Document (ISDOC), an electronic invoicing format used in the Czech Republic.

The ISDOC was defined by “A Working group for Electronic Standards of data exchanging” in ICT Union (formerly SPIS).

It is used for paperless exchanging of invoices and other documents, quick processing and portability among companies, public administration authorities and individuals.


How to open:

Use ABRA ISDOC Reader to view content of *.isdoc files.

How to convert:

Compatible tools are able to export *.isdoc files to other formats, such as popular PDF.

How to solve problems with ISDOC files

  • Associate the ISDOC file extension with the correct application. On :
    Windows: Right click on any ISDOC file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.ISDOC files". Mac: Right click (or Ctrl-click) the ISDOC file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .ISDOC is Information System Document. Because only the current version supports the latest ISDOC file format. Search, therefore, e.g. on the ABRA manufacturer website after an available .ISDOC is Information System Document update.
  • To make sure that your ISDOC file is not corrupted or virus-infected, get the file again and scan it with antivirus software.