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>> INDX file

INDX file format description

Many people share .indx files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .indx file can be edited, converted or printed with. On this page, we try to provide assistance for handling .indx files.

1 filename extension(s) found in our database.

.indx - CALDB Index

INDX file is a CALDB Index. The HEASARC's calibration database (CALDB) system stores and indexes datasets associated with the calibration of high energy astronomical instrumentation.

.indx file format description:
INDX format
Data files
- / -
CALDB Index related links:
CALDB Index related extensions:
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Telerik Test Studio Test Definitions File
TomTom Map Data
Microsoft Exchange Non-Delivery Report Message
HTC Hermes Rom Image
Lifo-Pro Producer Price Index

Naturally, other applications may also use the .indx file extension. Even harmful programs can create .indx files. Be especially cautious with .indx files coming from an unknown source!

Can't open a .indx file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .indx file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

idx, ndx, insx, indd, incx, inx, inds, ind

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

VobSub Subtitle Index
PCCharge Request XML File
TINA Library Index
Treepad Database Index
LaTeX Unsorted Index Data
Aston-Tate dBASE Database Index

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If you have useful information about the .indx file format, then write to us!